2099686520

素因数分解:

$2^3\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{31489}}^1$

素因数の和:33167

約数の個数: 32

約数和(自身を含む): 4727278800

約数和(自身を除く): 2627592280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1667, 3334, 6668, 8335, 13336, 16670, 31489, 33340, 62978, 66680, 125956, 157445, 251912, 314890, 629780, 1259560, 52492163, 104984326, 209968652, 262460815, 419937304, 524921630, 1049843260, 2099686520]

約数ペア:

[(1, 2099686520), (2, 1049843260), (4, 524921630), (5, 419937304), (8, 262460815), (10, 209968652), (20, 104984326), (40, 52492163), (1667, 1259560), (3334, 629780), (6668, 314890), (8335, 251912), (13336, 157445), (16670, 125956), (31489, 66680), (33340, 62978)]