1390025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 36

約数和(自身を含む): 2178432

約数和(自身を除く): 788407

約数列:

[1, 5, 7, 13, 25, 35, 47, 65, 91, 169, 175, 235, 325, 329, 455, 611, 845, 1175, 1183, 1645, 2275, 3055, 4225, 4277, 5915, 7943, 8225, 15275, 21385, 29575, 39715, 55601, 106925, 198575, 278005, 1390025]

約数ペア:

[(1, 1390025), (5, 278005), (7, 198575), (13, 106925), (25, 55601), (35, 39715), (47, 29575), (65, 21385), (91, 15275), (169, 8225), (175, 7943), (235, 5915), (325, 4277), (329, 4225), (455, 3055), (611, 2275), (845, 1645), (1175, 1183)]