40398980

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{2357}}^1$

素因数の和:3223

約数の個数: 24

約数和(自身を含む): 84972888

約数和(自身を除く): 44573908

約数列:

[1, 2, 4, 5, 10, 20, 857, 1714, 2357, 3428, 4285, 4714, 8570, 9428, 11785, 17140, 23570, 47140, 2019949, 4039898, 8079796, 10099745, 20199490, 40398980]

約数ペア:

[(1, 40398980), (2, 20199490), (4, 10099745), (5, 8079796), (10, 4039898), (20, 2019949), (857, 47140), (1714, 23570), (2357, 17140), (3428, 11785), (4285, 9428), (4714, 8570)]