82457980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5279}}^1$

素因数の和:5370

約数の個数: 48

約数和(自身を含む): 191600640

約数和(自身を除く): 109142660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 5279, 7810, 10558, 15620, 21116, 26395, 52790, 58069, 105580, 116138, 232276, 290345, 374809, 580690, 749618, 1161380, 1499236, 1874045, 3748090, 4122899, 7496180, 8245798, 16491596, 20614495, 41228990, 82457980]

約数ペア:

[(1, 82457980), (2, 41228990), (4, 20614495), (5, 16491596), (10, 8245798), (11, 7496180), (20, 4122899), (22, 3748090), (44, 1874045), (55, 1499236), (71, 1161380), (110, 749618), (142, 580690), (220, 374809), (284, 290345), (355, 232276), (710, 116138), (781, 105580), (1420, 58069), (1562, 52790), (3124, 26395), (3905, 21116), (5279, 15620), (7810, 10558)]