2778875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:116

約数の個数: 32

約数和(自身を含む): 3953664

約数和(自身を除く): 1174789

約数列:

[1, 5, 11, 25, 43, 47, 55, 125, 215, 235, 275, 473, 517, 1075, 1175, 1375, 2021, 2365, 2585, 5375, 5875, 10105, 11825, 12925, 22231, 50525, 59125, 64625, 111155, 252625, 555775, 2778875]

約数ペア:

[(1, 2778875), (5, 555775), (11, 252625), (25, 111155), (43, 64625), (47, 59125), (55, 50525), (125, 22231), (215, 12925), (235, 11825), (275, 10105), (473, 5875), (517, 5375), (1075, 2585), (1175, 2365), (1375, 2021)]