287641684

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1085

約数の個数: 72

約数和(自身を含む): 601798400

約数和(自身を除く): 314156716

約数列:

[1, 2, 4, 11, 19, 22, 31, 38, 44, 62, 76, 121, 124, 209, 242, 341, 418, 484, 589, 682, 836, 1009, 1178, 1364, 2018, 2299, 2356, 3751, 4036, 4598, 6479, 7502, 9196, 11099, 12958, 15004, 19171, 22198, 25916, 31279, 38342, 44396, 62558, 71269, 76684, 122089, 125116, 142538, 210881, 244178, 285076, 344069, 421762, 488356, 594301, 688138, 843524, 1188602, 1376276, 2319691, 2377204, 3784759, 4639382, 6537311, 7569518, 9278764, 13074622, 15139036, 26149244, 71910421, 143820842, 287641684]

約数ペア:

[(1, 287641684), (2, 143820842), (4, 71910421), (11, 26149244), (19, 15139036), (22, 13074622), (31, 9278764), (38, 7569518), (44, 6537311), (62, 4639382), (76, 3784759), (121, 2377204), (124, 2319691), (209, 1376276), (242, 1188602), (341, 843524), (418, 688138), (484, 594301), (589, 488356), (682, 421762), (836, 344069), (1009, 285076), (1178, 244178), (1364, 210881), (2018, 142538), (2299, 125116), (2356, 122089), (3751, 76684), (4036, 71269), (4598, 62558), (6479, 44396), (7502, 38342), (9196, 31279), (11099, 25916), (12958, 22198), (15004, 19171)]