51872840

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{5381}}^1$

素因数の和:5633

約数の個数: 32

約数和(自身を含む): 117219960

約数和(自身を除く): 65347120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 5381, 9640, 10762, 21524, 26905, 43048, 53810, 107620, 215240, 1296821, 2593642, 5187284, 6484105, 10374568, 12968210, 25936420, 51872840]

約数ペア:

[(1, 51872840), (2, 25936420), (4, 12968210), (5, 10374568), (8, 6484105), (10, 5187284), (20, 2593642), (40, 1296821), (241, 215240), (482, 107620), (964, 53810), (1205, 43048), (1928, 26905), (2410, 21524), (4820, 10762), (5381, 9640)]