1390940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4091}}^1$

素因数の和:4117

約数の個数: 24

約数和(自身を含む): 3093552

約数和(自身を除く): 1702612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 4091, 8182, 16364, 20455, 40910, 69547, 81820, 139094, 278188, 347735, 695470, 1390940]

約数ペア:

[(1, 1390940), (2, 695470), (4, 347735), (5, 278188), (10, 139094), (17, 81820), (20, 69547), (34, 40910), (68, 20455), (85, 16364), (170, 8182), (340, 4091)]