63515920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:572

約数の個数: 80

約数和(自身を含む): 160458480

約数和(自身を除く): 96942560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 157, 208, 260, 314, 389, 520, 628, 778, 785, 1040, 1256, 1556, 1570, 1945, 2041, 2512, 3112, 3140, 3890, 4082, 5057, 6224, 6280, 7780, 8164, 10114, 10205, 12560, 15560, 16328, 20228, 20410, 25285, 31120, 32656, 40456, 40820, 50570, 61073, 80912, 81640, 101140, 122146, 163280, 202280, 244292, 305365, 404560, 488584, 610730, 793949, 977168, 1221460, 1587898, 2442920, 3175796, 3969745, 4885840, 6351592, 7939490, 12703184, 15878980, 31757960, 63515920]

約数ペア:

[(1, 63515920), (2, 31757960), (4, 15878980), (5, 12703184), (8, 7939490), (10, 6351592), (13, 4885840), (16, 3969745), (20, 3175796), (26, 2442920), (40, 1587898), (52, 1221460), (65, 977168), (80, 793949), (104, 610730), (130, 488584), (157, 404560), (208, 305365), (260, 244292), (314, 202280), (389, 163280), (520, 122146), (628, 101140), (778, 81640), (785, 80912), (1040, 61073), (1256, 50570), (1556, 40820), (1570, 40456), (1945, 32656), (2041, 31120), (2512, 25285), (3112, 20410), (3140, 20228), (3890, 16328), (4082, 15560), (5057, 12560), (6224, 10205), (6280, 10114), (7780, 8164)]