77964100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{12781}}^1$

素因数の和:12856

約数の個数: 36

約数和(自身を含む): 171969028

約数和(自身を除く): 94004928

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 12781, 25562, 51124, 63905, 127810, 255620, 319525, 639050, 779641, 1278100, 1559282, 3118564, 3898205, 7796410, 15592820, 19491025, 38982050, 77964100]

約数ペア:

[(1, 77964100), (2, 38982050), (4, 19491025), (5, 15592820), (10, 7796410), (20, 3898205), (25, 3118564), (50, 1559282), (61, 1278100), (100, 779641), (122, 639050), (244, 319525), (305, 255620), (610, 127810), (1220, 63905), (1525, 51124), (3050, 25562), (6100, 12781)]