81382940

素因数分解:

$2^2\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{2441}}^1$

素因数の和:4117

約数の個数: 24

約数和(自身を含む): 171076752

約数和(自身を除く): 89693812

約数列:

[1, 2, 4, 5, 10, 20, 1667, 2441, 3334, 4882, 6668, 8335, 9764, 12205, 16670, 24410, 33340, 48820, 4069147, 8138294, 16276588, 20345735, 40691470, 81382940]

約数ペア:

[(1, 81382940), (2, 40691470), (4, 20345735), (5, 16276588), (10, 8138294), (20, 4069147), (1667, 48820), (2441, 33340), (3334, 24410), (4882, 16670), (6668, 12205), (8335, 9764)]