180986720

素因数分解:

$2^5\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1637}}^1$

素因数の和:2343

約数の個数: 48

約数和(自身を含む): 428461488

約数和(自身を除く): 247474768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 691, 1382, 1637, 2764, 3274, 3455, 5528, 6548, 6910, 8185, 11056, 13096, 13820, 16370, 22112, 26192, 27640, 32740, 52384, 55280, 65480, 110560, 130960, 261920, 1131167, 2262334, 4524668, 5655835, 9049336, 11311670, 18098672, 22623340, 36197344, 45246680, 90493360, 180986720]

約数ペア:

[(1, 180986720), (2, 90493360), (4, 45246680), (5, 36197344), (8, 22623340), (10, 18098672), (16, 11311670), (20, 9049336), (32, 5655835), (40, 4524668), (80, 2262334), (160, 1131167), (691, 261920), (1382, 130960), (1637, 110560), (2764, 65480), (3274, 55280), (3455, 52384), (5528, 32740), (6548, 27640), (6910, 26192), (8185, 22112), (11056, 16370), (13096, 13820)]