20051420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32341}}^1$

素因数の和:32381

約数の個数: 24

約数和(自身を含む): 43467648

約数和(自身を除く): 23416228

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32341, 64682, 129364, 161705, 323410, 646820, 1002571, 2005142, 4010284, 5012855, 10025710, 20051420]

約数ペア:

[(1, 20051420), (2, 10025710), (4, 5012855), (5, 4010284), (10, 2005142), (20, 1002571), (31, 646820), (62, 323410), (124, 161705), (155, 129364), (310, 64682), (620, 32341)]