721116625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2477}}^1$

素因数の和:2646

約数の個数: 32

約数和(自身を含む): 960234912

約数和(自身を除く): 239118287

約数列:

[1, 5, 17, 25, 85, 125, 137, 425, 685, 2125, 2329, 2477, 3425, 11645, 12385, 17125, 42109, 58225, 61925, 210545, 291125, 309625, 339349, 1052725, 1696745, 5263625, 5768933, 8483725, 28844665, 42418625, 144223325, 721116625]

約数ペア:

[(1, 721116625), (5, 144223325), (17, 42418625), (25, 28844665), (85, 8483725), (125, 5768933), (137, 5263625), (425, 1696745), (685, 1052725), (2125, 339349), (2329, 309625), (2477, 291125), (3425, 210545), (11645, 61925), (12385, 58225), (17125, 42109)]