20378205

素因数分解:

$3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2999}}^1$

素因数の和:3161

約数の個数: 24

約数和(自身を含む): 35568000

約数和(自身を除く): 15189795

約数列:

[1, 3, 5, 9, 15, 45, 151, 453, 755, 1359, 2265, 2999, 6795, 8997, 14995, 26991, 44985, 134955, 452849, 1358547, 2264245, 4075641, 6792735, 20378205]

約数ペア:

[(1, 20378205), (3, 6792735), (5, 4075641), (9, 2264245), (15, 1358547), (45, 452849), (151, 134955), (453, 44985), (755, 26991), (1359, 14995), (2265, 8997), (2999, 6795)]