339905920

素因数分解:

$2^7\times 5^1\times {\mathrm{531103}}^1$

素因数の和:531122

約数の個数: 32

約数和(自身を含む): 812589120

約数和(自身を除く): 472683200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 531103, 1062206, 2124412, 2655515, 4248824, 5311030, 8497648, 10622060, 16995296, 21244120, 33990592, 42488240, 67981184, 84976480, 169952960, 339905920]

約数ペア:

[(1, 339905920), (2, 169952960), (4, 84976480), (5, 67981184), (8, 42488240), (10, 33990592), (16, 21244120), (20, 16995296), (32, 10622060), (40, 8497648), (64, 5311030), (80, 4248824), (128, 2655515), (160, 2124412), (320, 1062206), (640, 531103)]