15420875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 32

約数和(自身を含む): 20866560

約数和(自身を除く): 5445685

約数列:

[1, 5, 19, 25, 43, 95, 125, 151, 215, 475, 755, 817, 1075, 2375, 2869, 3775, 4085, 5375, 6493, 14345, 18875, 20425, 32465, 71725, 102125, 123367, 162325, 358625, 616835, 811625, 3084175, 15420875]

約数ペア:

[(1, 15420875), (5, 3084175), (19, 811625), (25, 616835), (43, 358625), (95, 162325), (125, 123367), (151, 102125), (215, 71725), (475, 32465), (755, 20425), (817, 18875), (1075, 14345), (2375, 6493), (2869, 5375), (3775, 4085)]