23071420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18911}}^1$

素因数の和:18981

約数の個数: 24

約数和(自身を含む): 49246848

約数和(自身を除く): 26175428

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 18911, 37822, 75644, 94555, 189110, 378220, 1153571, 2307142, 4614284, 5767855, 11535710, 23071420]

約数ペア:

[(1, 23071420), (2, 11535710), (4, 5767855), (5, 4614284), (10, 2307142), (20, 1153571), (61, 378220), (122, 189110), (244, 94555), (305, 75644), (610, 37822), (1220, 18911)]