19173550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:585

約数の個数: 48

約数和(自身を含む): 39533184

約数和(自身を除く): 20359634

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 491, 550, 710, 781, 982, 1562, 1775, 2455, 3550, 3905, 4910, 5401, 7810, 10802, 12275, 19525, 24550, 27005, 34861, 39050, 54010, 69722, 135025, 174305, 270050, 348610, 383471, 766942, 871525, 1743050, 1917355, 3834710, 9586775, 19173550]

約数ペア:

[(1, 19173550), (2, 9586775), (5, 3834710), (10, 1917355), (11, 1743050), (22, 871525), (25, 766942), (50, 383471), (55, 348610), (71, 270050), (110, 174305), (142, 135025), (275, 69722), (355, 54010), (491, 39050), (550, 34861), (710, 27005), (781, 24550), (982, 19525), (1562, 12275), (1775, 10802), (2455, 7810), (3550, 5401), (3905, 4910)]