621781840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{3221}}^1$

素因数の和:3380

約数の個数: 80

約数和(自身を含む): 1534187520

約数和(自身を除く): 912405680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 127, 152, 190, 254, 304, 380, 508, 635, 760, 1016, 1270, 1520, 2032, 2413, 2540, 3221, 4826, 5080, 6442, 9652, 10160, 12065, 12884, 16105, 19304, 24130, 25768, 32210, 38608, 48260, 51536, 61199, 64420, 96520, 122398, 128840, 193040, 244796, 257680, 305995, 409067, 489592, 611990, 818134, 979184, 1223980, 1636268, 2045335, 2447960, 3272536, 4090670, 4895920, 6545072, 7772273, 8181340, 15544546, 16362680, 31089092, 32725360, 38861365, 62178184, 77722730, 124356368, 155445460, 310890920, 621781840]

約数ペア:

[(1, 621781840), (2, 310890920), (4, 155445460), (5, 124356368), (8, 77722730), (10, 62178184), (16, 38861365), (19, 32725360), (20, 31089092), (38, 16362680), (40, 15544546), (76, 8181340), (80, 7772273), (95, 6545072), (127, 4895920), (152, 4090670), (190, 3272536), (254, 2447960), (304, 2045335), (380, 1636268), (508, 1223980), (635, 979184), (760, 818134), (1016, 611990), (1270, 489592), (1520, 409067), (2032, 305995), (2413, 257680), (2540, 244796), (3221, 193040), (4826, 128840), (5080, 122398), (6442, 96520), (9652, 64420), (10160, 61199), (12065, 51536), (12884, 48260), (16105, 38608), (19304, 32210), (24130, 25768)]