66177220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{181}}^2$

素因数の和:472

約数の個数: 36

約数和(自身を含む): 141127812

約数和(自身を除く): 74950592

約数列:

[1, 2, 4, 5, 10, 20, 101, 181, 202, 362, 404, 505, 724, 905, 1010, 1810, 2020, 3620, 18281, 32761, 36562, 65522, 73124, 91405, 131044, 163805, 182810, 327610, 365620, 655220, 3308861, 6617722, 13235444, 16544305, 33088610, 66177220]

約数ペア:

[(1, 66177220), (2, 33088610), (4, 16544305), (5, 13235444), (10, 6617722), (20, 3308861), (101, 655220), (181, 365620), (202, 327610), (362, 182810), (404, 163805), (505, 131044), (724, 91405), (905, 73124), (1010, 65522), (1810, 36562), (2020, 32761), (3620, 18281)]