71266840

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{15767}}^1$

素因数の和:15891

約数の個数: 32

約数和(自身を含む): 161779680

約数和(自身を除く): 90512840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 15767, 31534, 63068, 78835, 126136, 157670, 315340, 630680, 1781671, 3563342, 7126684, 8908355, 14253368, 17816710, 35633420, 71266840]

約数ペア:

[(1, 71266840), (2, 35633420), (4, 17816710), (5, 14253368), (8, 8908355), (10, 7126684), (20, 3563342), (40, 1781671), (113, 630680), (226, 315340), (452, 157670), (565, 126136), (904, 78835), (1130, 63068), (2260, 31534), (4520, 15767)]