13413125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{1951}}^1$

素因数の和:1982

約数の個数: 20

約数和(自身を含む): 18294144

約数和(自身を除く): 4881019

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 1951, 6875, 9755, 21461, 48775, 107305, 243875, 536525, 1219375, 2682625, 13413125]

約数ペア:

[(1, 13413125), (5, 2682625), (11, 1219375), (25, 536525), (55, 243875), (125, 107305), (275, 48775), (625, 21461), (1375, 9755), (1951, 6875)]