51985420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{42611}}^1$

素因数の和:42681

約数の個数: 24

約数和(自身を含む): 110961648

約数和(自身を除く): 58976228

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 42611, 85222, 170444, 213055, 426110, 852220, 2599271, 5198542, 10397084, 12996355, 25992710, 51985420]

約数ペア:

[(1, 51985420), (2, 25992710), (4, 12996355), (5, 10397084), (10, 5198542), (20, 2599271), (61, 852220), (122, 426110), (244, 213055), (305, 170444), (610, 85222), (1220, 42611)]