219902975

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{541}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 278241120

約数和(自身を除く): 58338145

約数列:

[1, 5, 25, 71, 229, 355, 541, 1145, 1775, 2705, 5725, 13525, 16259, 38411, 81295, 123889, 192055, 406475, 619445, 960275, 3097225, 8796119, 43980595, 219902975]

約数ペア:

[(1, 219902975), (5, 43980595), (25, 8796119), (71, 3097225), (229, 960275), (355, 619445), (541, 406475), (1145, 192055), (1775, 123889), (2705, 81295), (5725, 38411), (13525, 16259)]