20187260

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12161}}^1$

素因数の和:12253

約数の個数: 24

約数和(自身を含む): 42907536

約数和(自身を除く): 22720276

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 12161, 24322, 48644, 60805, 121610, 243220, 1009363, 2018726, 4037452, 5046815, 10093630, 20187260]

約数ペア:

[(1, 20187260), (2, 10093630), (4, 5046815), (5, 4037452), (10, 2018726), (20, 1009363), (83, 243220), (166, 121610), (332, 60805), (415, 48644), (830, 24322), (1660, 12161)]