71892560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20899}}^1$

素因数の和:20955

約数の個数: 40

約数和(自身を含む): 171045600

約数和(自身を除く): 99153040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 20899, 41798, 83596, 104495, 167192, 208990, 334384, 417980, 835960, 898657, 1671920, 1797314, 3594628, 4493285, 7189256, 8986570, 14378512, 17973140, 35946280, 71892560]

約数ペア:

[(1, 71892560), (2, 35946280), (4, 17973140), (5, 14378512), (8, 8986570), (10, 7189256), (16, 4493285), (20, 3594628), (40, 1797314), (43, 1671920), (80, 898657), (86, 835960), (172, 417980), (215, 334384), (344, 208990), (430, 167192), (688, 104495), (860, 83596), (1720, 41798), (3440, 20899)]