28664180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 63216720

約数和(自身を除く): 34552540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 580, 677, 730, 1354, 1460, 2117, 2708, 3385, 4234, 6770, 8468, 10585, 13540, 19633, 21170, 39266, 42340, 49421, 78532, 98165, 98842, 196330, 197684, 247105, 392660, 494210, 988420, 1433209, 2866418, 5732836, 7166045, 14332090, 28664180]

約数ペア:

[(1, 28664180), (2, 14332090), (4, 7166045), (5, 5732836), (10, 2866418), (20, 1433209), (29, 988420), (58, 494210), (73, 392660), (116, 247105), (145, 197684), (146, 196330), (290, 98842), (292, 98165), (365, 78532), (580, 49421), (677, 42340), (730, 39266), (1354, 21170), (1460, 19633), (2117, 13540), (2708, 10585), (3385, 8468), (4234, 6770)]