28675625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 40

約数和(自身を含む): 40412064

約数和(自身を除く): 11736439

約数列:

[1, 5, 11, 25, 43, 55, 97, 125, 215, 275, 473, 485, 625, 1067, 1075, 1375, 2365, 2425, 4171, 5335, 5375, 6875, 11825, 12125, 20855, 26675, 26875, 45881, 59125, 60625, 104275, 133375, 229405, 295625, 521375, 666875, 1147025, 2606875, 5735125, 28675625]

約数ペア:

[(1, 28675625), (5, 5735125), (11, 2606875), (25, 1147025), (43, 666875), (55, 521375), (97, 295625), (125, 229405), (215, 133375), (275, 104275), (473, 60625), (485, 59125), (625, 45881), (1067, 26875), (1075, 26675), (1375, 20855), (2365, 12125), (2425, 11825), (4171, 6875), (5335, 5375)]