285223880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173917}}^1$

素因数の和:173969

約数の個数: 32

約数和(自身を含む): 657410040

約数和(自身を除く): 372186160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 173917, 347834, 695668, 869585, 1391336, 1739170, 3478340, 6956680, 7130597, 14261194, 28522388, 35652985, 57044776, 71305970, 142611940, 285223880]

約数ペア:

[(1, 285223880), (2, 142611940), (4, 71305970), (5, 57044776), (8, 35652985), (10, 28522388), (20, 14261194), (40, 7130597), (41, 6956680), (82, 3478340), (164, 1739170), (205, 1391336), (328, 869585), (410, 695668), (820, 347834), (1640, 173917)]