28635220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 62995968

約数和(自身を除く): 34360748

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 743, 820, 940, 1486, 1927, 2972, 3715, 3854, 7430, 7708, 9635, 14860, 19270, 30463, 34921, 38540, 60926, 69842, 121852, 139684, 152315, 174605, 304630, 349210, 609260, 698420, 1431761, 2863522, 5727044, 7158805, 14317610, 28635220]

約数ペア:

[(1, 28635220), (2, 14317610), (4, 7158805), (5, 5727044), (10, 2863522), (20, 1431761), (41, 698420), (47, 609260), (82, 349210), (94, 304630), (164, 174605), (188, 152315), (205, 139684), (235, 121852), (410, 69842), (470, 60926), (743, 38540), (820, 34921), (940, 30463), (1486, 19270), (1927, 14860), (2972, 9635), (3715, 7708), (3854, 7430)]