205725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 368032

約数和(自身を除く): 162307

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 211, 325, 633, 975, 1055, 2743, 3165, 5275, 8229, 13715, 15825, 41145, 68575, 205725]

約数ペア:

[(1, 205725), (3, 68575), (5, 41145), (13, 15825), (15, 13715), (25, 8229), (39, 5275), (65, 3165), (75, 2743), (195, 1055), (211, 975), (325, 633)]