38988820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8821}}^1$

素因数の和:8860

約数の個数: 48

約数和(自身を含む): 93372048

約数和(自身を除く): 54383228

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 8821, 17642, 35284, 44105, 88210, 114673, 149957, 176420, 229346, 299914, 458692, 573365, 599828, 749785, 1146730, 1499570, 1949441, 2293460, 2999140, 3898882, 7797764, 9747205, 19494410, 38988820]

約数ペア:

[(1, 38988820), (2, 19494410), (4, 9747205), (5, 7797764), (10, 3898882), (13, 2999140), (17, 2293460), (20, 1949441), (26, 1499570), (34, 1146730), (52, 749785), (65, 599828), (68, 573365), (85, 458692), (130, 299914), (170, 229346), (221, 176420), (260, 149957), (340, 114673), (442, 88210), (884, 44105), (1105, 35284), (2210, 17642), (4420, 8821)]