72128161

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 97438464

約数和(自身を除く): 25310303

約数列:

[1, 7, 17, 19, 23, 73, 119, 133, 161, 323, 361, 391, 437, 511, 1241, 1387, 1679, 2261, 2527, 2737, 3059, 6137, 7429, 8303, 8687, 9709, 11753, 23579, 26353, 28543, 31901, 42959, 52003, 58121, 141151, 165053, 184471, 199801, 223307, 448001, 542317, 606119, 988057, 3136007, 3796219, 4242833, 10304023, 72128161]

約数ペア:

[(1, 72128161), (7, 10304023), (17, 4242833), (19, 3796219), (23, 3136007), (73, 988057), (119, 606119), (133, 542317), (161, 448001), (323, 223307), (361, 199801), (391, 184471), (437, 165053), (511, 141151), (1241, 58121), (1387, 52003), (1679, 42959), (2261, 31901), (2527, 28543), (2737, 26353), (3059, 23579), (6137, 11753), (7429, 9709), (8303, 8687)]