80545556

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2801}}^1$

素因数の和:2904

約数の個数: 48

約数和(自身を含む): 175741440

約数和(自身を除く): 95195884

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 79, 91, 158, 182, 316, 364, 553, 1027, 1106, 2054, 2212, 2801, 4108, 5602, 7189, 11204, 14378, 19607, 28756, 36413, 39214, 72826, 78428, 145652, 221279, 254891, 442558, 509782, 885116, 1019564, 1548953, 2876627, 3097906, 5753254, 6195812, 11506508, 20136389, 40272778, 80545556]

約数ペア:

[(1, 80545556), (2, 40272778), (4, 20136389), (7, 11506508), (13, 6195812), (14, 5753254), (26, 3097906), (28, 2876627), (52, 1548953), (79, 1019564), (91, 885116), (158, 509782), (182, 442558), (316, 254891), (364, 221279), (553, 145652), (1027, 78428), (1106, 72826), (2054, 39214), (2212, 36413), (2801, 28756), (4108, 19607), (5602, 14378), (7189, 11204)]