129779975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21017}}^1$

素因数の和:21059

約数の個数: 24

約数和(自身を含む): 182436240

約数和(自身を除く): 52656265

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 6175, 21017, 105085, 273221, 399323, 525425, 1366105, 1996615, 5191199, 6830525, 9983075, 25955995, 129779975]

約数ペア:

[(1, 129779975), (5, 25955995), (13, 9983075), (19, 6830525), (25, 5191199), (65, 1996615), (95, 1366105), (247, 525425), (325, 399323), (475, 273221), (1235, 105085), (6175, 21017)]