129597980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{209029}}^1$

素因数の和:209069

約数の個数: 24

約数和(自身を含む): 280936320

約数和(自身を除く): 151338340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 209029, 418058, 836116, 1045145, 2090290, 4180580, 6479899, 12959798, 25919596, 32399495, 64798990, 129597980]

約数ペア:

[(1, 129597980), (2, 64798990), (4, 32399495), (5, 25919596), (10, 12959798), (20, 6479899), (31, 4180580), (62, 2090290), (124, 1045145), (155, 836116), (310, 418058), (620, 209029)]