12804512440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{71887}}^1$

素因数の和:72032

約数の個数: 64

約数和(自身を含む): 29683992960

約数和(自身を除く): 16879480520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 73, 122, 146, 244, 292, 305, 365, 488, 584, 610, 730, 1220, 1460, 2440, 2920, 4453, 8906, 17812, 22265, 35624, 44530, 71887, 89060, 143774, 178120, 287548, 359435, 575096, 718870, 1437740, 2875480, 4385107, 5247751, 8770214, 10495502, 17540428, 20991004, 21925535, 26238755, 35080856, 41982008, 43851070, 52477510, 87702140, 104955020, 175404280, 209910040, 320112811, 640225622, 1280451244, 1600564055, 2560902488, 3201128110, 6402256220, 12804512440]

約数ペア:

[(1, 12804512440), (2, 6402256220), (4, 3201128110), (5, 2560902488), (8, 1600564055), (10, 1280451244), (20, 640225622), (40, 320112811), (61, 209910040), (73, 175404280), (122, 104955020), (146, 87702140), (244, 52477510), (292, 43851070), (305, 41982008), (365, 35080856), (488, 26238755), (584, 21925535), (610, 20991004), (730, 17540428), (1220, 10495502), (1460, 8770214), (2440, 5247751), (2920, 4385107), (4453, 2875480), (8906, 1437740), (17812, 718870), (22265, 575096), (35624, 359435), (44530, 287548), (71887, 178120), (89060, 143774)]