401036920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{233161}}^1$

素因数の和:233215

約数の個数: 32

約数和(自身を含む): 923321520

約数和(自身を除く): 522284600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 233161, 466322, 932644, 1165805, 1865288, 2331610, 4663220, 9326440, 10025923, 20051846, 40103692, 50129615, 80207384, 100259230, 200518460, 401036920]

約数ペア:

[(1, 401036920), (2, 200518460), (4, 100259230), (5, 80207384), (8, 50129615), (10, 40103692), (20, 20051846), (40, 10025923), (43, 9326440), (86, 4663220), (172, 2331610), (215, 1865288), (344, 1165805), (430, 932644), (860, 466322), (1720, 233161)]