19771375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^3$

素因数の和:97

約数の個数: 32

約数和(自身を含む): 27780480

約数和(自身を除く): 8009105

約数列:

[1, 5, 13, 23, 25, 65, 115, 125, 299, 325, 529, 575, 1495, 1625, 2645, 2875, 6877, 7475, 12167, 13225, 34385, 37375, 60835, 66125, 158171, 171925, 304175, 790855, 859625, 1520875, 3954275, 19771375]

約数ペア:

[(1, 19771375), (5, 3954275), (13, 1520875), (23, 859625), (25, 790855), (65, 304175), (115, 171925), (125, 158171), (299, 66125), (325, 60835), (529, 37375), (575, 34385), (1495, 13225), (1625, 12167), (2645, 7475), (2875, 6877)]