138958988

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{160091}}^1$

素因数の和:160133

約数の個数: 24

約数和(自身を含む): 286884864

約数和(自身を除く): 147925876

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 160091, 320182, 640364, 1120637, 2241274, 4482548, 4962821, 9925642, 19851284, 34739747, 69479494, 138958988]

約数ペア:

[(1, 138958988), (2, 69479494), (4, 34739747), (7, 19851284), (14, 9925642), (28, 4962821), (31, 4482548), (62, 2241274), (124, 1120637), (217, 640364), (434, 320182), (868, 160091)]