279270290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{74077}}^1$

素因数の和:74126

約数の個数: 32

約数和(自身を含む): 560029680

約数和(自身を除く): 280759390

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 74077, 148154, 370385, 740770, 963001, 1926002, 2148233, 4296466, 4815005, 9630010, 10741165, 21482330, 27927029, 55854058, 139635145, 279270290]

約数ペア:

[(1, 279270290), (2, 139635145), (5, 55854058), (10, 27927029), (13, 21482330), (26, 10741165), (29, 9630010), (58, 4815005), (65, 4296466), (130, 2148233), (145, 1926002), (290, 963001), (377, 740770), (754, 370385), (1885, 148154), (3770, 74077)]