18839375

素因数分解:

$5^4\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:764

約数の個数: 20

約数和(自身を含む): 24123528

約数和(自身を除く): 5284153

約数列:

[1, 5, 25, 43, 125, 215, 625, 701, 1075, 3505, 5375, 17525, 26875, 30143, 87625, 150715, 438125, 753575, 3767875, 18839375]

約数ペア:

[(1, 18839375), (5, 3767875), (25, 753575), (43, 438125), (125, 150715), (215, 87625), (625, 30143), (701, 26875), (1075, 17525), (3505, 5375)]