28172180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45439}}^1$

素因数の和:45479

約数の個数: 24

約数和(自身を含む): 61071360

約数和(自身を除く): 32899180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 45439, 90878, 181756, 227195, 454390, 908780, 1408609, 2817218, 5634436, 7043045, 14086090, 28172180]

約数ペア:

[(1, 28172180), (2, 14086090), (4, 7043045), (5, 5634436), (10, 2817218), (20, 1408609), (31, 908780), (62, 454390), (124, 227195), (155, 181756), (310, 90878), (620, 45439)]