1957640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 4455000

約数和(自身を除く): 2497360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 449, 545, 872, 898, 1090, 1796, 2180, 2245, 3592, 4360, 4490, 8980, 17960, 48941, 97882, 195764, 244705, 391528, 489410, 978820, 1957640]

約数ペア:

[(1, 1957640), (2, 978820), (4, 489410), (5, 391528), (8, 244705), (10, 195764), (20, 97882), (40, 48941), (109, 17960), (218, 8980), (436, 4490), (449, 4360), (545, 3592), (872, 2245), (898, 2180), (1090, 1796)]