18105575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 24165120

約数和(自身を除く): 6059545

約数列:

[1, 5, 19, 25, 47, 95, 235, 475, 811, 893, 1175, 4055, 4465, 15409, 20275, 22325, 38117, 77045, 190585, 385225, 724223, 952925, 3621115, 18105575]

約数ペア:

[(1, 18105575), (5, 3621115), (19, 952925), (25, 724223), (47, 385225), (95, 190585), (235, 77045), (475, 38117), (811, 22325), (893, 20275), (1175, 15409), (4055, 4465)]