808216820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{587}}^1\times {\mathrm{1601}}^1$

素因数の和:2240

約数の個数: 48

約数和(自身を含む): 1740771648

約数和(自身を除く): 932554828

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 587, 860, 1174, 1601, 2348, 2935, 3202, 5870, 6404, 8005, 11740, 16010, 25241, 32020, 50482, 68843, 100964, 126205, 137686, 252410, 275372, 344215, 504820, 688430, 939787, 1376860, 1879574, 3759148, 4698935, 9397870, 18795740, 40410841, 80821682, 161643364, 202054205, 404108410, 808216820]

約数ペア:

[(1, 808216820), (2, 404108410), (4, 202054205), (5, 161643364), (10, 80821682), (20, 40410841), (43, 18795740), (86, 9397870), (172, 4698935), (215, 3759148), (430, 1879574), (587, 1376860), (860, 939787), (1174, 688430), (1601, 504820), (2348, 344215), (2935, 275372), (3202, 252410), (5870, 137686), (6404, 126205), (8005, 100964), (11740, 68843), (16010, 50482), (25241, 32020)]