28018420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45191}}^1$

素因数の和:45231

約数の個数: 24

約数和(自身を含む): 60738048

約数和(自身を除く): 32719628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 45191, 90382, 180764, 225955, 451910, 903820, 1400921, 2801842, 5603684, 7004605, 14009210, 28018420]

約数ペア:

[(1, 28018420), (2, 14009210), (4, 7004605), (5, 5603684), (10, 2801842), (20, 1400921), (31, 903820), (62, 451910), (124, 225955), (155, 180764), (310, 90382), (620, 45191)]