20128025560

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1747}}^1\times {\mathrm{2549}}^1$

素因数の和:4420

約数の個数: 64

約数和(自身を含む): 45732924000

約数和(自身を除く): 25604898440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 1747, 2260, 2549, 3494, 4520, 5098, 6988, 8735, 10196, 12745, 13976, 17470, 20392, 25490, 34940, 50980, 69880, 101960, 197411, 288037, 394822, 576074, 789644, 987055, 1152148, 1440185, 1579288, 1974110, 2304296, 2880370, 3948220, 4453103, 5760740, 7896440, 8906206, 11521480, 17812412, 22265515, 35624824, 44531030, 89062060, 178124120, 503200639, 1006401278, 2012802556, 2516003195, 4025605112, 5032006390, 10064012780, 20128025560]

約数ペア:

[(1, 20128025560), (2, 10064012780), (4, 5032006390), (5, 4025605112), (8, 2516003195), (10, 2012802556), (20, 1006401278), (40, 503200639), (113, 178124120), (226, 89062060), (452, 44531030), (565, 35624824), (904, 22265515), (1130, 17812412), (1747, 11521480), (2260, 8906206), (2549, 7896440), (3494, 5760740), (4520, 4453103), (5098, 3948220), (6988, 2880370), (8735, 2304296), (10196, 1974110), (12745, 1579288), (13976, 1440185), (17470, 1152148), (20392, 987055), (25490, 789644), (34940, 576074), (50980, 394822), (69880, 288037), (101960, 197411)]