397777360

素因数分解:

$2^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{7013}}^1$

素因数の和:7735

約数の個数: 40

約数和(自身を含む): 926268840

約数和(自身を除く): 528491480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 709, 1418, 2836, 3545, 5672, 7013, 7090, 11344, 14026, 14180, 28052, 28360, 35065, 56104, 56720, 70130, 112208, 140260, 280520, 561040, 4972217, 9944434, 19888868, 24861085, 39777736, 49722170, 79555472, 99444340, 198888680, 397777360]

約数ペア:

[(1, 397777360), (2, 198888680), (4, 99444340), (5, 79555472), (8, 49722170), (10, 39777736), (16, 24861085), (20, 19888868), (40, 9944434), (80, 4972217), (709, 561040), (1418, 280520), (2836, 140260), (3545, 112208), (5672, 70130), (7013, 56720), (7090, 56104), (11344, 35065), (14026, 28360), (14180, 28052)]