19497530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 38737440

約数和(自身を除く): 19239910

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 139, 166, 169, 278, 338, 415, 695, 830, 845, 1079, 1390, 1690, 1807, 2158, 3614, 5395, 9035, 10790, 11537, 14027, 18070, 23074, 23491, 28054, 46982, 57685, 70135, 115370, 117455, 140270, 149981, 234910, 299962, 749905, 1499810, 1949753, 3899506, 9748765, 19497530]

約数ペア:

[(1, 19497530), (2, 9748765), (5, 3899506), (10, 1949753), (13, 1499810), (26, 749905), (65, 299962), (83, 234910), (130, 149981), (139, 140270), (166, 117455), (169, 115370), (278, 70135), (338, 57685), (415, 46982), (695, 28054), (830, 23491), (845, 23074), (1079, 18070), (1390, 14027), (1690, 11537), (1807, 10790), (2158, 9035), (3614, 5395)]