640778100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{257}}^1\times {\mathrm{8311}}^1$

素因数の和:8585

約数の個数: 72

約数和(自身を含む): 1861422528

約数和(自身を除く): 1220644428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 257, 300, 514, 771, 1028, 1285, 1542, 2570, 3084, 3855, 5140, 6425, 7710, 8311, 12850, 15420, 16622, 19275, 24933, 25700, 33244, 38550, 41555, 49866, 77100, 83110, 99732, 124665, 166220, 207775, 249330, 415550, 498660, 623325, 831100, 1246650, 2135927, 2493300, 4271854, 6407781, 8543708, 10679635, 12815562, 21359270, 25631124, 32038905, 42718540, 53398175, 64077810, 106796350, 128155620, 160194525, 213592700, 320389050, 640778100]

約数ペア:

[(1, 640778100), (2, 320389050), (3, 213592700), (4, 160194525), (5, 128155620), (6, 106796350), (10, 64077810), (12, 53398175), (15, 42718540), (20, 32038905), (25, 25631124), (30, 21359270), (50, 12815562), (60, 10679635), (75, 8543708), (100, 6407781), (150, 4271854), (257, 2493300), (300, 2135927), (514, 1246650), (771, 831100), (1028, 623325), (1285, 498660), (1542, 415550), (2570, 249330), (3084, 207775), (3855, 166220), (5140, 124665), (6425, 99732), (7710, 83110), (8311, 77100), (12850, 49866), (15420, 41555), (16622, 38550), (19275, 33244), (24933, 25700)]