280887152

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{192917}}^1$

素因数の和:192945

約数の個数: 40

約数和(自身を含む): 669811296

約数和(自身を除く): 388924144

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 192917, 385834, 771668, 1350419, 1543336, 2507921, 2700838, 3086672, 5015842, 5401676, 10031684, 10803352, 17555447, 20063368, 21606704, 35110894, 40126736, 70221788, 140443576, 280887152]

約数ペア:

[(1, 280887152), (2, 140443576), (4, 70221788), (7, 40126736), (8, 35110894), (13, 21606704), (14, 20063368), (16, 17555447), (26, 10803352), (28, 10031684), (52, 5401676), (56, 5015842), (91, 3086672), (104, 2700838), (112, 2507921), (182, 1543336), (208, 1350419), (364, 771668), (728, 385834), (1456, 192917)]