31800978

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 80693760

約数和(自身を除く): 48892782

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 31, 33, 54, 62, 66, 93, 99, 121, 157, 186, 198, 242, 279, 297, 314, 341, 363, 471, 558, 594, 682, 726, 837, 942, 1023, 1089, 1413, 1674, 1727, 2046, 2178, 2826, 3069, 3267, 3454, 3751, 4239, 4867, 5181, 6138, 6534, 7502, 8478, 9207, 9734, 10362, 11253, 14601, 15543, 18414, 18997, 22506, 29202, 31086, 33759, 37994, 43803, 46629, 53537, 56991, 67518, 87606, 93258, 101277, 107074, 113982, 131409, 160611, 170973, 202554, 262818, 321222, 341946, 481833, 512919, 588907, 963666, 1025838, 1177814, 1445499, 1766721, 2890998, 3533442, 5300163, 10600326, 15900489, 31800978]

約数ペア:

[(1, 31800978), (2, 15900489), (3, 10600326), (6, 5300163), (9, 3533442), (11, 2890998), (18, 1766721), (22, 1445499), (27, 1177814), (31, 1025838), (33, 963666), (54, 588907), (62, 512919), (66, 481833), (93, 341946), (99, 321222), (121, 262818), (157, 202554), (186, 170973), (198, 160611), (242, 131409), (279, 113982), (297, 107074), (314, 101277), (341, 93258), (363, 87606), (471, 67518), (558, 56991), (594, 53537), (682, 46629), (726, 43803), (837, 37994), (942, 33759), (1023, 31086), (1089, 29202), (1413, 22506), (1674, 18997), (1727, 18414), (2046, 15543), (2178, 14601), (2826, 11253), (3069, 10362), (3267, 9734), (3454, 9207), (3751, 8478), (4239, 7502), (4867, 6534), (5181, 6138)]