15939275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 21762000

約数和(自身を除く): 5822725

約数列:

[1, 5, 11, 25, 55, 149, 275, 389, 745, 1639, 1945, 3725, 4279, 8195, 9725, 21395, 40975, 57961, 106975, 289805, 637571, 1449025, 3187855, 15939275]

約数ペア:

[(1, 15939275), (5, 3187855), (11, 1449025), (25, 637571), (55, 289805), (149, 106975), (275, 57961), (389, 40975), (745, 21395), (1639, 9725), (1945, 8195), (3725, 4279)]