28017875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 9721645

約数列:

[1, 5, 19, 25, 47, 95, 125, 235, 251, 475, 893, 1175, 1255, 2375, 4465, 4769, 5875, 6275, 11797, 22325, 23845, 31375, 58985, 111625, 119225, 224143, 294925, 596125, 1120715, 1474625, 5603575, 28017875]

約数ペア:

[(1, 28017875), (5, 5603575), (19, 1474625), (25, 1120715), (47, 596125), (95, 294925), (125, 224143), (235, 119225), (251, 111625), (475, 58985), (893, 31375), (1175, 23845), (1255, 22325), (2375, 11797), (4465, 6275), (4769, 5875)]