1291213740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21520229}}^1$

素因数の和:21520241

約数の個数: 24

約数和(自身を含む): 3615398640

約数和(自身を除く): 2324184900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21520229, 43040458, 64560687, 86080916, 107601145, 129121374, 215202290, 258242748, 322803435, 430404580, 645606870, 1291213740]

約数ペア:

[(1, 1291213740), (2, 645606870), (3, 430404580), (4, 322803435), (5, 258242748), (6, 215202290), (10, 129121374), (12, 107601145), (15, 86080916), (20, 64560687), (30, 43040458), (60, 21520229)]