81123868

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 166973184

約数和(自身を除く): 85849316

約数列:

[1, 2, 4, 7, 14, 28, 67, 83, 134, 166, 268, 332, 469, 521, 581, 938, 1042, 1162, 1876, 2084, 2324, 3647, 5561, 7294, 11122, 14588, 22244, 34907, 38927, 43243, 69814, 77854, 86486, 139628, 155708, 172972, 244349, 302701, 488698, 605402, 977396, 1210804, 2897281, 5794562, 11589124, 20280967, 40561934, 81123868]

約数ペア:

[(1, 81123868), (2, 40561934), (4, 20280967), (7, 11589124), (14, 5794562), (28, 2897281), (67, 1210804), (83, 977396), (134, 605402), (166, 488698), (268, 302701), (332, 244349), (469, 172972), (521, 155708), (581, 139628), (938, 86486), (1042, 77854), (1162, 69814), (1876, 43243), (2084, 38927), (2324, 34907), (3647, 22244), (5561, 14588), (7294, 11122)]