12500015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 17962560

約数和(自身を除く): 5462545

約数列:

[1, 5, 11, 17, 29, 55, 85, 145, 187, 319, 461, 493, 935, 1595, 2305, 2465, 5071, 5423, 7837, 13369, 25355, 27115, 39185, 66845, 86207, 147059, 227273, 431035, 735295, 1136365, 2500003, 12500015]

約数ペア:

[(1, 12500015), (5, 2500003), (11, 1136365), (17, 735295), (29, 431035), (55, 227273), (85, 147059), (145, 86207), (187, 66845), (319, 39185), (461, 27115), (493, 25355), (935, 13369), (1595, 7837), (2305, 5423), (2465, 5071)]