30459640

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2963}}^1$

素因数の和:3231

約数の個数: 32

約数和(自身を含む): 68824080

約数和(自身を除く): 38364440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 2963, 5140, 5926, 10280, 11852, 14815, 23704, 29630, 59260, 118520, 761491, 1522982, 3045964, 3807455, 6091928, 7614910, 15229820, 30459640]

約数ペア:

[(1, 30459640), (2, 15229820), (4, 7614910), (5, 6091928), (8, 3807455), (10, 3045964), (20, 1522982), (40, 761491), (257, 118520), (514, 59260), (1028, 29630), (1285, 23704), (2056, 14815), (2570, 11852), (2963, 10280), (5140, 5926)]