18726875

素因数分解:

$5^4\times {\mathrm{19}}^2\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 30

約数和(自身を含む): 24995124

約数和(自身を除く): 6268249

約数列:

[1, 5, 19, 25, 83, 95, 125, 361, 415, 475, 625, 1577, 1805, 2075, 2375, 7885, 9025, 10375, 11875, 29963, 39425, 45125, 51875, 149815, 197125, 225625, 749075, 985625, 3745375, 18726875]

約数ペア:

[(1, 18726875), (5, 3745375), (19, 985625), (25, 749075), (83, 225625), (95, 197125), (125, 149815), (361, 51875), (415, 45125), (475, 39425), (625, 29963), (1577, 11875), (1805, 10375), (2075, 9025), (2375, 7885)]