28040385

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 46096128

約数和(自身を除く): 18055743

約数列:

[1, 3, 5, 15, 71, 113, 213, 233, 339, 355, 565, 699, 1065, 1165, 1695, 3495, 8023, 16543, 24069, 26329, 40115, 49629, 78987, 82715, 120345, 131645, 248145, 394935, 1869359, 5608077, 9346795, 28040385]

約数ペア:

[(1, 28040385), (3, 9346795), (5, 5608077), (15, 1869359), (71, 394935), (113, 248145), (213, 131645), (233, 120345), (339, 82715), (355, 78987), (565, 49629), (699, 40115), (1065, 26329), (1165, 24069), (1695, 16543), (3495, 8023)]