22638640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6581}}^1$

素因数の和:6637

約数の個数: 40

約数和(自身を含む): 53867088

約数和(自身を除く): 31228448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 6581, 13162, 26324, 32905, 52648, 65810, 105296, 131620, 263240, 282983, 526480, 565966, 1131932, 1414915, 2263864, 2829830, 4527728, 5659660, 11319320, 22638640]

約数ペア:

[(1, 22638640), (2, 11319320), (4, 5659660), (5, 4527728), (8, 2829830), (10, 2263864), (16, 1414915), (20, 1131932), (40, 565966), (43, 526480), (80, 282983), (86, 263240), (172, 131620), (215, 105296), (344, 65810), (430, 52648), (688, 32905), (860, 26324), (1720, 13162), (3440, 6581)]