28690420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130411}}^1$

素因数の和:130431

約数の個数: 24

約数和(自身を含む): 65727648

約数和(自身を除く): 37037228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130411, 260822, 521644, 652055, 1304110, 1434521, 2608220, 2869042, 5738084, 7172605, 14345210, 28690420]

約数ペア:

[(1, 28690420), (2, 14345210), (4, 7172605), (5, 5738084), (10, 2869042), (11, 2608220), (20, 1434521), (22, 1304110), (44, 652055), (55, 521644), (110, 260822), (220, 130411)]