20081220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7121}}^1$

素因数の和:7180

約数の個数: 48

約数和(自身を含む): 57431808

約数和(自身を除く): 37350588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7121, 14242, 21363, 28484, 35605, 42726, 71210, 85452, 106815, 142420, 213630, 334687, 427260, 669374, 1004061, 1338748, 1673435, 2008122, 3346870, 4016244, 5020305, 6693740, 10040610, 20081220]

約数ペア:

[(1, 20081220), (2, 10040610), (3, 6693740), (4, 5020305), (5, 4016244), (6, 3346870), (10, 2008122), (12, 1673435), (15, 1338748), (20, 1004061), (30, 669374), (47, 427260), (60, 334687), (94, 213630), (141, 142420), (188, 106815), (235, 85452), (282, 71210), (470, 42726), (564, 35605), (705, 28484), (940, 21363), (1410, 14242), (2820, 7121)]