285291390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{20809}}^1$

素因数の和:21276

約数の個数: 32

約数和(自身を含む): 686230560

約数和(自身を除く): 400939170

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 457, 914, 1371, 2285, 2742, 4570, 6855, 13710, 20809, 41618, 62427, 104045, 124854, 208090, 312135, 624270, 9509713, 19019426, 28529139, 47548565, 57058278, 95097130, 142645695, 285291390]

約数ペア:

[(1, 285291390), (2, 142645695), (3, 95097130), (5, 57058278), (6, 47548565), (10, 28529139), (15, 19019426), (30, 9509713), (457, 624270), (914, 312135), (1371, 208090), (2285, 124854), (2742, 104045), (4570, 62427), (6855, 41618), (13710, 20809)]