820802500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 240

約数和(自身を含む): 2267274240

約数和(自身を除く): 1446471740

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 31, 34, 35, 50, 62, 68, 70, 85, 89, 100, 119, 124, 125, 140, 155, 170, 175, 178, 217, 238, 250, 310, 340, 350, 356, 425, 434, 445, 476, 500, 527, 595, 620, 623, 625, 700, 775, 850, 868, 875, 890, 1054, 1085, 1190, 1246, 1250, 1513, 1550, 1700, 1750, 1780, 2108, 2125, 2170, 2225, 2380, 2492, 2500, 2635, 2759, 2975, 3026, 3100, 3115, 3500, 3689, 3875, 4250, 4340, 4375, 4450, 5270, 5425, 5518, 5950, 6052, 6230, 7378, 7565, 7750, 8500, 8750, 8900, 10540, 10591, 10625, 10850, 11036, 11125, 11900, 12460, 13175, 13795, 14756, 14875, 15130, 15500, 15575, 17500, 18445, 19313, 19375, 21182, 21250, 21700, 22250, 26350, 27125, 27590, 29750, 30260, 31150, 36890, 37825, 38626, 38750, 42364, 42500, 44500, 46903, 52700, 52955, 54250, 55180, 55625, 59500, 62300, 65875, 68975, 73780, 74375, 75650, 77252, 77500, 77875, 92225, 93806, 96565, 105910, 108500, 111250, 131750, 135625, 137950, 148750, 151300, 155750, 184450, 187612, 189125, 193130, 211820, 222500, 234515, 263500, 264775, 271250, 275900, 297500, 311500, 328321, 329375, 344875, 368900, 378250, 386260, 389375, 461125, 469030, 482825, 529550, 542500, 656642, 658750, 689750, 756500, 778750, 922250, 938060, 945625, 965650, 1059100, 1172575, 1313284, 1317500, 1323875, 1379500, 1557500, 1641605, 1724375, 1844500, 1891250, 1931300, 2305625, 2345150, 2414125, 2647750, 3283210, 3448750, 3782500, 4611250, 4690300, 4828250, 5295500, 5862875, 6566420, 6619375, 6897500, 8208025, 9222500, 9656500, 11725750, 12070625, 13238750, 16416050, 23451500, 24141250, 26477500, 29314375, 32832100, 41040125, 48282500, 58628750, 82080250, 117257500, 164160500, 205200625, 410401250, 820802500]

約数ペア:

[(1, 820802500), (2, 410401250), (4, 205200625), (5, 164160500), (7, 117257500), (10, 82080250), (14, 58628750), (17, 48282500), (20, 41040125), (25, 32832100), (28, 29314375), (31, 26477500), (34, 24141250), (35, 23451500), (50, 16416050), (62, 13238750), (68, 12070625), (70, 11725750), (85, 9656500), (89, 9222500), (100, 8208025), (119, 6897500), (124, 6619375), (125, 6566420), (140, 5862875), (155, 5295500), (170, 4828250), (175, 4690300), (178, 4611250), (217, 3782500), (238, 3448750), (250, 3283210), (310, 2647750), (340, 2414125), (350, 2345150), (356, 2305625), (425, 1931300), (434, 1891250), (445, 1844500), (476, 1724375), (500, 1641605), (527, 1557500), (595, 1379500), (620, 1323875), (623, 1317500), (625, 1313284), (700, 1172575), (775, 1059100), (850, 965650), (868, 945625), (875, 938060), (890, 922250), (1054, 778750), (1085, 756500), (1190, 689750), (1246, 658750), (1250, 656642), (1513, 542500), (1550, 529550), (1700, 482825), (1750, 469030), (1780, 461125), (2108, 389375), (2125, 386260), (2170, 378250), (2225, 368900), (2380, 344875), (2492, 329375), (2500, 328321), (2635, 311500), (2759, 297500), (2975, 275900), (3026, 271250), (3100, 264775), (3115, 263500), (3500, 234515), (3689, 222500), (3875, 211820), (4250, 193130), (4340, 189125), (4375, 187612), (4450, 184450), (5270, 155750), (5425, 151300), (5518, 148750), (5950, 137950), (6052, 135625), (6230, 131750), (7378, 111250), (7565, 108500), (7750, 105910), (8500, 96565), (8750, 93806), (8900, 92225), (10540, 77875), (10591, 77500), (10625, 77252), (10850, 75650), (11036, 74375), (11125, 73780), (11900, 68975), (12460, 65875), (13175, 62300), (13795, 59500), (14756, 55625), (14875, 55180), (15130, 54250), (15500, 52955), (15575, 52700), (17500, 46903), (18445, 44500), (19313, 42500), (19375, 42364), (21182, 38750), (21250, 38626), (21700, 37825), (22250, 36890), (26350, 31150), (27125, 30260), (27590, 29750)]