251687440

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{16301}}^1$

素因数の和:16507

約数の個数: 40

約数和(自身を含む): 588241368

約数和(自身を除く): 336553928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 16301, 32602, 65204, 81505, 130408, 163010, 260816, 326020, 652040, 1304080, 3146093, 6292186, 12584372, 15730465, 25168744, 31460930, 50337488, 62921860, 125843720, 251687440]

約数ペア:

[(1, 251687440), (2, 125843720), (4, 62921860), (5, 50337488), (8, 31460930), (10, 25168744), (16, 15730465), (20, 12584372), (40, 6292186), (80, 3146093), (193, 1304080), (386, 652040), (772, 326020), (965, 260816), (1544, 163010), (1930, 130408), (3088, 81505), (3860, 65204), (7720, 32602), (15440, 16301)]