81321178

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 131788800

約数和(自身を除く): 50467622

約数列:

[1, 2, 19, 38, 79, 103, 158, 206, 263, 526, 1501, 1957, 3002, 3914, 4997, 8137, 9994, 16274, 20777, 27089, 41554, 54178, 154603, 309206, 394763, 514691, 789526, 1029382, 2140031, 4280062, 40660589, 81321178]

約数ペア:

[(1, 81321178), (2, 40660589), (19, 4280062), (38, 2140031), (79, 1029382), (103, 789526), (158, 514691), (206, 394763), (263, 309206), (526, 154603), (1501, 54178), (1957, 41554), (3002, 27089), (3914, 20777), (4997, 16274), (8137, 9994)]