203420680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1747}}^1$

素因数の和:1870

約数の個数: 64

約数和(自身を含む): 475735680

約数和(自身を除く): 272315000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 710, 820, 1420, 1640, 1747, 2840, 2911, 3494, 5822, 6988, 8735, 11644, 13976, 14555, 17470, 23288, 29110, 34940, 58220, 69880, 71627, 116440, 124037, 143254, 248074, 286508, 358135, 496148, 573016, 620185, 716270, 992296, 1240370, 1432540, 2480740, 2865080, 4961480, 5085517, 10171034, 20342068, 25427585, 40684136, 50855170, 101710340, 203420680]

約数ペア:

[(1, 203420680), (2, 101710340), (4, 50855170), (5, 40684136), (8, 25427585), (10, 20342068), (20, 10171034), (40, 5085517), (41, 4961480), (71, 2865080), (82, 2480740), (142, 1432540), (164, 1240370), (205, 992296), (284, 716270), (328, 620185), (355, 573016), (410, 496148), (568, 358135), (710, 286508), (820, 248074), (1420, 143254), (1640, 124037), (1747, 116440), (2840, 71627), (2911, 69880), (3494, 58220), (5822, 34940), (6988, 29110), (8735, 23288), (11644, 17470), (13976, 14555)]