2891102020

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{321949}}^1$

素因数の和:322407

約数の個数: 24

約数和(自身を含む): 6084855000

約数和(自身を除く): 3193752980

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8980, 321949, 643898, 1287796, 1609745, 3219490, 6438980, 144555101, 289110202, 578220404, 722775505, 1445551010, 2891102020]

約数ペア:

[(1, 2891102020), (2, 1445551010), (4, 722775505), (5, 578220404), (10, 289110202), (20, 144555101), (449, 6438980), (898, 3219490), (1796, 1609745), (2245, 1287796), (4490, 643898), (8980, 321949)]