1855274375

素因数分解:

$5^4\times {\mathrm{71}}^1\times {\mathrm{41809}}^1$

素因数の和:41900

約数の個数: 20

約数和(自身を含む): 2351059920

約数和(自身を除く): 495785545

約数列:

[1, 5, 25, 71, 125, 355, 625, 1775, 8875, 41809, 44375, 209045, 1045225, 2968439, 5226125, 14842195, 26130625, 74210975, 371054875, 1855274375]

約数ペア:

[(1, 1855274375), (5, 371054875), (25, 74210975), (71, 26130625), (125, 14842195), (355, 5226125), (625, 2968439), (1775, 1045225), (8875, 209045), (41809, 44375)]