20430940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60091}}^1$

素因数の和:60117

約数の個数: 24

約数和(自身を含む): 45429552

約数和(自身を除く): 24998612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 60091, 120182, 240364, 300455, 600910, 1021547, 1201820, 2043094, 4086188, 5107735, 10215470, 20430940]

約数ペア:

[(1, 20430940), (2, 10215470), (4, 5107735), (5, 4086188), (10, 2043094), (17, 1201820), (20, 1021547), (34, 600910), (68, 300455), (85, 240364), (170, 120182), (340, 60091)]