61538125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{8951}}^1$

素因数の和:8982

約数の個数: 20

約数和(自身を含む): 83898144

約数和(自身を除く): 22360019

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 6875, 8951, 44755, 98461, 223775, 492305, 1118875, 2461525, 5594375, 12307625, 61538125]

約数ペア:

[(1, 61538125), (5, 12307625), (11, 5594375), (25, 2461525), (55, 1118875), (125, 492305), (275, 223775), (625, 98461), (1375, 44755), (6875, 8951)]