285805220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{10303}}^1$

素因数の和:10404

約数の個数: 48

約数和(自身を含む): 640496640

約数和(自身を除く): 354691420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 1387, 1460, 2774, 5548, 6935, 10303, 13870, 20606, 27740, 41212, 51515, 103030, 195757, 206060, 391514, 752119, 783028, 978785, 1504238, 1957570, 3008476, 3760595, 3915140, 7521190, 14290261, 15042380, 28580522, 57161044, 71451305, 142902610, 285805220]

約数ペア:

[(1, 285805220), (2, 142902610), (4, 71451305), (5, 57161044), (10, 28580522), (19, 15042380), (20, 14290261), (38, 7521190), (73, 3915140), (76, 3760595), (95, 3008476), (146, 1957570), (190, 1504238), (292, 978785), (365, 783028), (380, 752119), (730, 391514), (1387, 206060), (1460, 195757), (2774, 103030), (5548, 51515), (6935, 41212), (10303, 27740), (13870, 20606)]