18936125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 26138112

約数和(自身を除く): 7201987

約数列:

[1, 5, 13, 25, 43, 65, 125, 215, 271, 325, 559, 1075, 1355, 1625, 2795, 3523, 5375, 6775, 11653, 13975, 17615, 33875, 58265, 69875, 88075, 151489, 291325, 440375, 757445, 1456625, 3787225, 18936125]

約数ペア:

[(1, 18936125), (5, 3787225), (13, 1456625), (25, 757445), (43, 440375), (65, 291325), (125, 151489), (215, 88075), (271, 69875), (325, 58265), (559, 33875), (1075, 17615), (1355, 13975), (1625, 11653), (2795, 6775), (3523, 5375)]