642509280

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{21247}}^1$

素因数の和:21278

約数の個数: 192

約数和(自身を含む): 2570158080

約数和(自身を除く): 1927648800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 21247, 30240, 42494, 63741, 84988, 106235, 127482, 148729, 169976, 191223, 212470, 254964, 297458, 318705, 339952, 382446, 424940, 446187, 509928, 573669, 594916, 637410, 679904, 743645, 764892, 849880, 892374, 956115, 1019856, 1147338, 1189832, 1274820, 1338561, 1487290, 1529784, 1699760, 1784748, 1912230, 2039712, 2230935, 2294676, 2379664, 2549640, 2677122, 2868345, 2974580, 3059568, 3399520, 3569496, 3824460, 4015683, 4461870, 4589352, 4759328, 5099280, 5354244, 5736690, 5949160, 6119136, 6692805, 7138992, 7648920, 8031366, 8923740, 9178704, 10198560, 10708488, 11473380, 11898320, 13385610, 14277984, 15297840, 16062732, 17847480, 18357408, 20078415, 21416976, 22946760, 23796640, 26771220, 30595680, 32125464, 35694960, 40156830, 42833952, 45893520, 53542440, 64250928, 71389920, 80313660, 91787040, 107084880, 128501856, 160627320, 214169760, 321254640, 642509280]

約数ペア:

[(1, 642509280), (2, 321254640), (3, 214169760), (4, 160627320), (5, 128501856), (6, 107084880), (7, 91787040), (8, 80313660), (9, 71389920), (10, 64250928), (12, 53542440), (14, 45893520), (15, 42833952), (16, 40156830), (18, 35694960), (20, 32125464), (21, 30595680), (24, 26771220), (27, 23796640), (28, 22946760), (30, 21416976), (32, 20078415), (35, 18357408), (36, 17847480), (40, 16062732), (42, 15297840), (45, 14277984), (48, 13385610), (54, 11898320), (56, 11473380), (60, 10708488), (63, 10198560), (70, 9178704), (72, 8923740), (80, 8031366), (84, 7648920), (90, 7138992), (96, 6692805), (105, 6119136), (108, 5949160), (112, 5736690), (120, 5354244), (126, 5099280), (135, 4759328), (140, 4589352), (144, 4461870), (160, 4015683), (168, 3824460), (180, 3569496), (189, 3399520), (210, 3059568), (216, 2974580), (224, 2868345), (240, 2677122), (252, 2549640), (270, 2379664), (280, 2294676), (288, 2230935), (315, 2039712), (336, 1912230), (360, 1784748), (378, 1699760), (420, 1529784), (432, 1487290), (480, 1338561), (504, 1274820), (540, 1189832), (560, 1147338), (630, 1019856), (672, 956115), (720, 892374), (756, 849880), (840, 764892), (864, 743645), (945, 679904), (1008, 637410), (1080, 594916), (1120, 573669), (1260, 509928), (1440, 446187), (1512, 424940), (1680, 382446), (1890, 339952), (2016, 318705), (2160, 297458), (2520, 254964), (3024, 212470), (3360, 191223), (3780, 169976), (4320, 148729), (5040, 127482), (6048, 106235), (7560, 84988), (10080, 63741), (15120, 42494), (21247, 30240)]