80307680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26417}}^1$

素因数の和:26451

約数の個数: 48

約数和(自身を含む): 199720080

約数和(自身を除く): 119412400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 26417, 52834, 105668, 132085, 211336, 264170, 422672, 501923, 528340, 845344, 1003846, 1056680, 2007692, 2113360, 2509615, 4015384, 4226720, 5019230, 8030768, 10038460, 16061536, 20076920, 40153840, 80307680]

約数ペア:

[(1, 80307680), (2, 40153840), (4, 20076920), (5, 16061536), (8, 10038460), (10, 8030768), (16, 5019230), (19, 4226720), (20, 4015384), (32, 2509615), (38, 2113360), (40, 2007692), (76, 1056680), (80, 1003846), (95, 845344), (152, 528340), (160, 501923), (190, 422672), (304, 264170), (380, 211336), (608, 132085), (760, 105668), (1520, 52834), (3040, 26417)]