81105388

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 179869200

約数和(自身を除く): 98763812

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 139, 182, 196, 229, 278, 364, 458, 556, 637, 916, 973, 1274, 1603, 1807, 1946, 2548, 2977, 3206, 3614, 3892, 5954, 6412, 6811, 7228, 11221, 11908, 12649, 13622, 20839, 22442, 25298, 27244, 31831, 41678, 44884, 50596, 63662, 83356, 88543, 127324, 145873, 177086, 222817, 291746, 354172, 413803, 445634, 583492, 827606, 891268, 1559719, 1655212, 2896621, 3119438, 5793242, 6238876, 11586484, 20276347, 40552694, 81105388]

約数ペア:

[(1, 81105388), (2, 40552694), (4, 20276347), (7, 11586484), (13, 6238876), (14, 5793242), (26, 3119438), (28, 2896621), (49, 1655212), (52, 1559719), (91, 891268), (98, 827606), (139, 583492), (182, 445634), (196, 413803), (229, 354172), (278, 291746), (364, 222817), (458, 177086), (556, 145873), (637, 127324), (916, 88543), (973, 83356), (1274, 63662), (1603, 50596), (1807, 44884), (1946, 41678), (2548, 31831), (2977, 27244), (3206, 25298), (3614, 22442), (3892, 20839), (5954, 13622), (6412, 12649), (6811, 11908), (7228, 11221)]