252172840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:842

約数の個数: 64

約数和(自身を含む): 579720960

約数和(自身を除く): 327548120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 103, 194, 206, 388, 412, 485, 515, 631, 776, 824, 970, 1030, 1262, 1940, 2060, 2524, 3155, 3880, 4120, 5048, 6310, 9991, 12620, 19982, 25240, 39964, 49955, 61207, 64993, 79928, 99910, 122414, 129986, 199820, 244828, 259972, 306035, 324965, 399640, 489656, 519944, 612070, 649930, 1224140, 1299860, 2448280, 2599720, 6304321, 12608642, 25217284, 31521605, 50434568, 63043210, 126086420, 252172840]

約数ペア:

[(1, 252172840), (2, 126086420), (4, 63043210), (5, 50434568), (8, 31521605), (10, 25217284), (20, 12608642), (40, 6304321), (97, 2599720), (103, 2448280), (194, 1299860), (206, 1224140), (388, 649930), (412, 612070), (485, 519944), (515, 489656), (631, 399640), (776, 324965), (824, 306035), (970, 259972), (1030, 244828), (1262, 199820), (1940, 129986), (2060, 122414), (2524, 99910), (3155, 79928), (3880, 64993), (4120, 61207), (5048, 49955), (6310, 39964), (9991, 25240), (12620, 19982)]