77267920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8861}}^1$

素因数の和:8983

約数の個数: 40

約数和(自身を含む): 181316520

約数和(自身を除く): 104048600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 8861, 17722, 35444, 44305, 70888, 88610, 141776, 177220, 354440, 708880, 965849, 1931698, 3863396, 4829245, 7726792, 9658490, 15453584, 19316980, 38633960, 77267920]

約数ペア:

[(1, 77267920), (2, 38633960), (4, 19316980), (5, 15453584), (8, 9658490), (10, 7726792), (16, 4829245), (20, 3863396), (40, 1931698), (80, 965849), (109, 708880), (218, 354440), (436, 177220), (545, 141776), (872, 88610), (1090, 70888), (1744, 44305), (2180, 35444), (4360, 17722), (8720, 8861)]