27181375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 37477440

約数和(自身を除く): 10296065

約数列:

[1, 5, 13, 25, 43, 65, 125, 215, 325, 389, 559, 1075, 1625, 1945, 2795, 5057, 5375, 9725, 13975, 16727, 25285, 48625, 69875, 83635, 126425, 217451, 418175, 632125, 1087255, 2090875, 5436275, 27181375]

約数ペア:

[(1, 27181375), (5, 5436275), (13, 2090875), (25, 1087255), (43, 632125), (65, 418175), (125, 217451), (215, 126425), (325, 83635), (389, 69875), (559, 48625), (1075, 25285), (1625, 16727), (1945, 13975), (2795, 9725), (5057, 5375)]