135906875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:465

約数の個数: 40

約数和(自身を含む): 187627440

約数和(自身を除く): 51720565

約数列:

[1, 5, 13, 25, 43, 65, 125, 215, 325, 389, 559, 625, 1075, 1625, 1945, 2795, 5057, 5375, 8125, 9725, 13975, 16727, 25285, 26875, 48625, 69875, 83635, 126425, 217451, 243125, 349375, 418175, 632125, 1087255, 2090875, 3160625, 5436275, 10454375, 27181375, 135906875]

約数ペア:

[(1, 135906875), (5, 27181375), (13, 10454375), (25, 5436275), (43, 3160625), (65, 2090875), (125, 1087255), (215, 632125), (325, 418175), (389, 349375), (559, 243125), (625, 217451), (1075, 126425), (1625, 83635), (1945, 69875), (2795, 48625), (5057, 26875), (5375, 25285), (8125, 16727), (9725, 13975)]