64639775

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1423}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 84756480

約数和(自身を除く): 20116705

約数列:

[1, 5, 23, 25, 79, 115, 395, 575, 1423, 1817, 1975, 7115, 9085, 32729, 35575, 45425, 112417, 163645, 562085, 818225, 2585591, 2810425, 12927955, 64639775]

約数ペア:

[(1, 64639775), (5, 12927955), (23, 2810425), (25, 2585591), (79, 818225), (115, 562085), (395, 163645), (575, 112417), (1423, 45425), (1817, 35575), (1975, 32729), (7115, 9085)]