1121738125

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 1462032000

約数和(自身を除く): 340293875

約数列:

[1, 5, 25, 29, 125, 145, 199, 311, 625, 725, 995, 1555, 3625, 4975, 5771, 7775, 9019, 18125, 24875, 28855, 38875, 45095, 61889, 124375, 144275, 194375, 225475, 309445, 721375, 1127375, 1547225, 1794781, 3606875, 5636875, 7736125, 8973905, 38680625, 44869525, 224347625, 1121738125]

約数ペア:

[(1, 1121738125), (5, 224347625), (25, 44869525), (29, 38680625), (125, 8973905), (145, 7736125), (199, 5636875), (311, 3606875), (625, 1794781), (725, 1547225), (995, 1127375), (1555, 721375), (3625, 309445), (4975, 225475), (5771, 194375), (7775, 144275), (9019, 124375), (18125, 61889), (24875, 45095), (28855, 38875)]