38720339

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 52005888

約数和(自身を除く): 13285549

約数列:

[1, 7, 17, 23, 43, 47, 49, 119, 161, 301, 329, 391, 731, 799, 833, 989, 1081, 1127, 2021, 2107, 2303, 2737, 5117, 5593, 6923, 7567, 14147, 16813, 18377, 19159, 34357, 35819, 39151, 46483, 48461, 52969, 99029, 117691, 128639, 240499, 325381, 790211, 823837, 900473, 1683493, 2277667, 5531477, 38720339]

約数ペア:

[(1, 38720339), (7, 5531477), (17, 2277667), (23, 1683493), (43, 900473), (47, 823837), (49, 790211), (119, 325381), (161, 240499), (301, 128639), (329, 117691), (391, 99029), (731, 52969), (799, 48461), (833, 46483), (989, 39151), (1081, 35819), (1127, 34357), (2021, 19159), (2107, 18377), (2303, 16813), (2737, 14147), (5117, 7567), (5593, 6923)]