18706870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 42247296

約数和(自身を除く): 23540426

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 61, 65, 70, 91, 122, 130, 182, 305, 337, 427, 455, 610, 674, 793, 854, 910, 1586, 1685, 2135, 2359, 3370, 3965, 4270, 4381, 4718, 5551, 7930, 8762, 11102, 11795, 20557, 21905, 23590, 27755, 30667, 41114, 43810, 55510, 61334, 102785, 143899, 153335, 205570, 267241, 287798, 306670, 534482, 719495, 1336205, 1438990, 1870687, 2672410, 3741374, 9353435, 18706870]

約数ペア:

[(1, 18706870), (2, 9353435), (5, 3741374), (7, 2672410), (10, 1870687), (13, 1438990), (14, 1336205), (26, 719495), (35, 534482), (61, 306670), (65, 287798), (70, 267241), (91, 205570), (122, 153335), (130, 143899), (182, 102785), (305, 61334), (337, 55510), (427, 43810), (455, 41114), (610, 30667), (674, 27755), (793, 23590), (854, 21905), (910, 20557), (1586, 11795), (1685, 11102), (2135, 8762), (2359, 7930), (3370, 5551), (3965, 4718), (4270, 4381)]