3980265

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 6773760

約数和(自身を除く): 2793495

約数列:

[1, 3, 5, 15, 23, 69, 83, 115, 139, 249, 345, 415, 417, 695, 1245, 1909, 2085, 3197, 5727, 9545, 9591, 11537, 15985, 28635, 34611, 47955, 57685, 173055, 265351, 796053, 1326755, 3980265]

約数ペア:

[(1, 3980265), (3, 1326755), (5, 796053), (15, 265351), (23, 173055), (69, 57685), (83, 47955), (115, 34611), (139, 28635), (249, 15985), (345, 11537), (415, 9591), (417, 9545), (695, 5727), (1245, 3197), (1909, 2085)]