138906908

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{160031}}^1$

素因数の和:160073

約数の個数: 24

約数和(自身を含む): 286777344

約数和(自身を除く): 147870436

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 160031, 320062, 640124, 1120217, 2240434, 4480868, 4960961, 9921922, 19843844, 34726727, 69453454, 138906908]

約数ペア:

[(1, 138906908), (2, 69453454), (4, 34726727), (7, 19843844), (14, 9921922), (28, 4960961), (31, 4480868), (62, 2240434), (124, 1120217), (217, 640124), (434, 320062), (868, 160031)]