121282225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{821}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 159007680

約数和(自身を除く): 37725455

約数列:

[1, 5, 19, 25, 95, 311, 475, 821, 1555, 4105, 5909, 7775, 15599, 20525, 29545, 77995, 147725, 255331, 389975, 1276655, 4851289, 6383275, 24256445, 121282225]

約数ペア:

[(1, 121282225), (5, 24256445), (19, 6383275), (25, 4851289), (95, 1276655), (311, 389975), (475, 255331), (821, 147725), (1555, 77995), (4105, 29545), (5909, 20525), (7775, 15599)]