1577225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 2208192

約数和(自身を除く): 630967

約数列:

[1, 5, 13, 23, 25, 65, 115, 211, 299, 325, 575, 1055, 1495, 2743, 4853, 5275, 7475, 13715, 24265, 63089, 68575, 121325, 315445, 1577225]

約数ペア:

[(1, 1577225), (5, 315445), (13, 121325), (23, 68575), (25, 63089), (65, 24265), (115, 13715), (211, 7475), (299, 5275), (325, 4853), (575, 2743), (1055, 1495)]