209061875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:725

約数の個数: 40

約数和(自身を含む): 291506688

約数和(自身を除く): 82444813

約数列:

[1, 5, 11, 25, 47, 55, 125, 235, 275, 517, 625, 647, 1175, 1375, 2585, 3235, 5875, 6875, 7117, 12925, 16175, 29375, 30409, 35585, 64625, 80875, 152045, 177925, 323125, 334499, 404375, 760225, 889625, 1672495, 3801125, 4448125, 8362475, 19005625, 41812375, 209061875]

約数ペア:

[(1, 209061875), (5, 41812375), (11, 19005625), (25, 8362475), (47, 4448125), (55, 3801125), (125, 1672495), (235, 889625), (275, 760225), (517, 404375), (625, 334499), (647, 323125), (1175, 177925), (1375, 152045), (2585, 80875), (3235, 64625), (5875, 35585), (6875, 30409), (7117, 29375), (12925, 16175)]