77781728

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 160030080

約数和(自身を除く): 82248352

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 89, 124, 178, 248, 356, 496, 712, 881, 992, 1424, 1762, 2759, 2848, 3524, 5518, 7048, 11036, 14096, 22072, 27311, 28192, 44144, 54622, 78409, 88288, 109244, 156818, 218488, 313636, 436976, 627272, 873952, 1254544, 2430679, 2509088, 4861358, 9722716, 19445432, 38890864, 77781728]

約数ペア:

[(1, 77781728), (2, 38890864), (4, 19445432), (8, 9722716), (16, 4861358), (31, 2509088), (32, 2430679), (62, 1254544), (89, 873952), (124, 627272), (178, 436976), (248, 313636), (356, 218488), (496, 156818), (712, 109244), (881, 88288), (992, 78409), (1424, 54622), (1762, 44144), (2759, 28192), (2848, 27311), (3524, 22072), (5518, 14096), (7048, 11036)]