820652000

素因数分解:

$2^5\times 5^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 288

約数和(自身を含む): 2420046720

約数和(自身を除く): 1599394720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 53, 56, 70, 79, 80, 98, 100, 106, 112, 125, 140, 158, 160, 175, 196, 200, 212, 224, 245, 250, 265, 280, 316, 350, 371, 392, 395, 400, 424, 490, 500, 530, 553, 560, 632, 700, 742, 784, 790, 800, 848, 875, 980, 1000, 1060, 1106, 1120, 1225, 1264, 1325, 1400, 1484, 1568, 1580, 1696, 1750, 1855, 1960, 1975, 2000, 2120, 2212, 2450, 2528, 2597, 2650, 2765, 2800, 2968, 3160, 3500, 3710, 3871, 3920, 3950, 4000, 4187, 4240, 4424, 4900, 5194, 5300, 5530, 5600, 5936, 6125, 6320, 6625, 7000, 7420, 7742, 7840, 7900, 8374, 8480, 8848, 9275, 9800, 9875, 10388, 10600, 11060, 11872, 12250, 12640, 12985, 13250, 13825, 14000, 14840, 15484, 15800, 16748, 17696, 18550, 19355, 19600, 19750, 20776, 20935, 21200, 22120, 24500, 25970, 26500, 27650, 28000, 29309, 29680, 30968, 31600, 33496, 37100, 38710, 39200, 39500, 41552, 41870, 42400, 44240, 46375, 49000, 51940, 53000, 55300, 58618, 59360, 61936, 63200, 64925, 66992, 69125, 74200, 77420, 79000, 83104, 83740, 88480, 92750, 96775, 98000, 103880, 104675, 106000, 110600, 117236, 123872, 129850, 133984, 138250, 146545, 148400, 154840, 158000, 167480, 185500, 193550, 196000, 205163, 207760, 209350, 212000, 221200, 234472, 259700, 276500, 293090, 296800, 309680, 316000, 324625, 334960, 371000, 387100, 410326, 415520, 418700, 442400, 468944, 483875, 519400, 523375, 553000, 586180, 619360, 649250, 669920, 732725, 742000, 774200, 820652, 837400, 937888, 967750, 1025815, 1038800, 1046750, 1106000, 1172360, 1298500, 1465450, 1484000, 1548400, 1641304, 1674800, 1935500, 2051630, 2077600, 2093500, 2212000, 2344720, 2597000, 2930900, 3096800, 3282608, 3349600, 3663625, 3871000, 4103260, 4187000, 4689440, 5129075, 5194000, 5861800, 6565216, 7327250, 7742000, 8206520, 8374000, 10258150, 10388000, 11723600, 14654500, 15484000, 16413040, 16748000, 20516300, 23447200, 25645375, 29309000, 32826080, 41032600, 51290750, 58618000, 82065200, 102581500, 117236000, 164130400, 205163000, 410326000, 820652000]

約数ペア:

[(1, 820652000), (2, 410326000), (4, 205163000), (5, 164130400), (7, 117236000), (8, 102581500), (10, 82065200), (14, 58618000), (16, 51290750), (20, 41032600), (25, 32826080), (28, 29309000), (32, 25645375), (35, 23447200), (40, 20516300), (49, 16748000), (50, 16413040), (53, 15484000), (56, 14654500), (70, 11723600), (79, 10388000), (80, 10258150), (98, 8374000), (100, 8206520), (106, 7742000), (112, 7327250), (125, 6565216), (140, 5861800), (158, 5194000), (160, 5129075), (175, 4689440), (196, 4187000), (200, 4103260), (212, 3871000), (224, 3663625), (245, 3349600), (250, 3282608), (265, 3096800), (280, 2930900), (316, 2597000), (350, 2344720), (371, 2212000), (392, 2093500), (395, 2077600), (400, 2051630), (424, 1935500), (490, 1674800), (500, 1641304), (530, 1548400), (553, 1484000), (560, 1465450), (632, 1298500), (700, 1172360), (742, 1106000), (784, 1046750), (790, 1038800), (800, 1025815), (848, 967750), (875, 937888), (980, 837400), (1000, 820652), (1060, 774200), (1106, 742000), (1120, 732725), (1225, 669920), (1264, 649250), (1325, 619360), (1400, 586180), (1484, 553000), (1568, 523375), (1580, 519400), (1696, 483875), (1750, 468944), (1855, 442400), (1960, 418700), (1975, 415520), (2000, 410326), (2120, 387100), (2212, 371000), (2450, 334960), (2528, 324625), (2597, 316000), (2650, 309680), (2765, 296800), (2800, 293090), (2968, 276500), (3160, 259700), (3500, 234472), (3710, 221200), (3871, 212000), (3920, 209350), (3950, 207760), (4000, 205163), (4187, 196000), (4240, 193550), (4424, 185500), (4900, 167480), (5194, 158000), (5300, 154840), (5530, 148400), (5600, 146545), (5936, 138250), (6125, 133984), (6320, 129850), (6625, 123872), (7000, 117236), (7420, 110600), (7742, 106000), (7840, 104675), (7900, 103880), (8374, 98000), (8480, 96775), (8848, 92750), (9275, 88480), (9800, 83740), (9875, 83104), (10388, 79000), (10600, 77420), (11060, 74200), (11872, 69125), (12250, 66992), (12640, 64925), (12985, 63200), (13250, 61936), (13825, 59360), (14000, 58618), (14840, 55300), (15484, 53000), (15800, 51940), (16748, 49000), (17696, 46375), (18550, 44240), (19355, 42400), (19600, 41870), (19750, 41552), (20776, 39500), (20935, 39200), (21200, 38710), (22120, 37100), (24500, 33496), (25970, 31600), (26500, 30968), (27650, 29680), (28000, 29309)]