128432120

素因数分解:

$2^3\times 5^1\times {\mathrm{3210803}}^1$

素因数の和:3210814

約数の個数: 16

約数和(自身を含む): 288972360

約数和(自身を除く): 160540240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3210803, 6421606, 12843212, 16054015, 25686424, 32108030, 64216060, 128432120]

約数ペア:

[(1, 128432120), (2, 64216060), (4, 32108030), (5, 25686424), (8, 16054015), (10, 12843212), (20, 6421606), (40, 3210803)]