15311240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 39744000

約数和(自身を除く): 24432760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 367, 596, 734, 745, 1043, 1192, 1468, 1490, 1835, 2086, 2569, 2936, 2980, 3670, 4172, 5138, 5215, 5960, 7340, 8344, 10276, 10430, 12845, 14680, 20552, 20860, 25690, 41720, 51380, 54683, 102760, 109366, 218732, 273415, 382781, 437464, 546830, 765562, 1093660, 1531124, 1913905, 2187320, 3062248, 3827810, 7655620, 15311240]

約数ペア:

[(1, 15311240), (2, 7655620), (4, 3827810), (5, 3062248), (7, 2187320), (8, 1913905), (10, 1531124), (14, 1093660), (20, 765562), (28, 546830), (35, 437464), (40, 382781), (56, 273415), (70, 218732), (140, 109366), (149, 102760), (280, 54683), (298, 51380), (367, 41720), (596, 25690), (734, 20860), (745, 20552), (1043, 14680), (1192, 12845), (1468, 10430), (1490, 10276), (1835, 8344), (2086, 7340), (2569, 5960), (2936, 5215), (2980, 5138), (3670, 4172)]