13551340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2038

約数の個数: 48

約数和(自身を含む): 32062464

約数和(自身を除く): 18511124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 1987, 3410, 3974, 6820, 7948, 9935, 19870, 21857, 39740, 43714, 61597, 87428, 109285, 123194, 218570, 246388, 307985, 437140, 615970, 677567, 1231940, 1355134, 2710268, 3387835, 6775670, 13551340]

約数ペア:

[(1, 13551340), (2, 6775670), (4, 3387835), (5, 2710268), (10, 1355134), (11, 1231940), (20, 677567), (22, 615970), (31, 437140), (44, 307985), (55, 246388), (62, 218570), (110, 123194), (124, 109285), (155, 87428), (220, 61597), (310, 43714), (341, 39740), (620, 21857), (682, 19870), (1364, 9935), (1705, 7948), (1987, 6820), (3410, 3974)]