28562415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 55910400

約数和(自身を除く): 27347985

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 103, 105, 133, 139, 285, 309, 399, 417, 515, 665, 695, 721, 973, 1545, 1957, 1995, 2085, 2163, 2641, 2919, 3605, 4865, 5871, 7923, 9785, 10815, 13205, 13699, 14317, 14595, 18487, 29355, 39615, 41097, 42951, 55461, 68495, 71585, 92435, 100219, 205485, 214755, 272023, 277305, 300657, 501095, 816069, 1360115, 1503285, 1904161, 4080345, 5712483, 9520805, 28562415]

約数ペア:

[(1, 28562415), (3, 9520805), (5, 5712483), (7, 4080345), (15, 1904161), (19, 1503285), (21, 1360115), (35, 816069), (57, 501095), (95, 300657), (103, 277305), (105, 272023), (133, 214755), (139, 205485), (285, 100219), (309, 92435), (399, 71585), (417, 68495), (515, 55461), (665, 42951), (695, 41097), (721, 39615), (973, 29355), (1545, 18487), (1957, 14595), (1995, 14317), (2085, 13699), (2163, 13205), (2641, 10815), (2919, 9785), (3605, 7923), (4865, 5871)]