20785728

素因数分解:

$2^6\times 3^1\times {\mathrm{73}}^1\times {\mathrm{1483}}^1$

素因数の和:1571

約数の個数: 56

約数和(自身を含む): 55786528

約数和(自身を除く): 35000800

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 73, 96, 146, 192, 219, 292, 438, 584, 876, 1168, 1483, 1752, 2336, 2966, 3504, 4449, 4672, 5932, 7008, 8898, 11864, 14016, 17796, 23728, 35592, 47456, 71184, 94912, 108259, 142368, 216518, 284736, 324777, 433036, 649554, 866072, 1299108, 1732144, 2598216, 3464288, 5196432, 6928576, 10392864, 20785728]

約数ペア:

[(1, 20785728), (2, 10392864), (3, 6928576), (4, 5196432), (6, 3464288), (8, 2598216), (12, 1732144), (16, 1299108), (24, 866072), (32, 649554), (48, 433036), (64, 324777), (73, 284736), (96, 216518), (146, 142368), (192, 108259), (219, 94912), (292, 71184), (438, 47456), (584, 35592), (876, 23728), (1168, 17796), (1483, 14016), (1752, 11864), (2336, 8898), (2966, 7008), (3504, 5932), (4449, 4672)]