81867864

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1021}}^1$

素因数の和:1300

約数の個数: 64

約数和(自身を含む): 221487840

約数和(自身を除く): 139619976

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 257, 312, 514, 771, 1021, 1028, 1542, 2042, 2056, 3063, 3084, 3341, 4084, 6126, 6168, 6682, 8168, 10023, 12252, 13273, 13364, 20046, 24504, 26546, 26728, 39819, 40092, 53092, 79638, 80184, 106184, 159276, 262397, 318552, 524794, 787191, 1049588, 1574382, 2099176, 3148764, 3411161, 6297528, 6822322, 10233483, 13644644, 20466966, 27289288, 40933932, 81867864]

約数ペア:

[(1, 81867864), (2, 40933932), (3, 27289288), (4, 20466966), (6, 13644644), (8, 10233483), (12, 6822322), (13, 6297528), (24, 3411161), (26, 3148764), (39, 2099176), (52, 1574382), (78, 1049588), (104, 787191), (156, 524794), (257, 318552), (312, 262397), (514, 159276), (771, 106184), (1021, 80184), (1028, 79638), (1542, 53092), (2042, 40092), (2056, 39819), (3063, 26728), (3084, 26546), (3341, 24504), (4084, 20046), (6126, 13364), (6168, 13273), (6682, 12252), (8168, 10023)]