28207942724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^2$

素因数の和:765

約数の個数: 72

約数和(自身を含む): 54895830528

約数和(自身を除く): 26687887804

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 191, 257, 382, 514, 559, 764, 1028, 1118, 2236, 2483, 3341, 4966, 6682, 8213, 9932, 11051, 13364, 16426, 22102, 32852, 44204, 49087, 66049, 98174, 106769, 132098, 143663, 196348, 213538, 264196, 287326, 427076, 574652, 638131, 858637, 1276262, 1717274, 2110741, 2552524, 2840107, 3434548, 4221482, 5680214, 8442964, 11360428, 12615359, 25230718, 27439633, 36921391, 50461436, 54879266, 73842782, 109758532, 147685564, 163999667, 327999334, 542460437, 655998668, 1084920874, 2169841748, 7051985681, 14103971362, 28207942724]

約数ペア:

[(1, 28207942724), (2, 14103971362), (4, 7051985681), (13, 2169841748), (26, 1084920874), (43, 655998668), (52, 542460437), (86, 327999334), (172, 163999667), (191, 147685564), (257, 109758532), (382, 73842782), (514, 54879266), (559, 50461436), (764, 36921391), (1028, 27439633), (1118, 25230718), (2236, 12615359), (2483, 11360428), (3341, 8442964), (4966, 5680214), (6682, 4221482), (8213, 3434548), (9932, 2840107), (11051, 2552524), (13364, 2110741), (16426, 1717274), (22102, 1276262), (32852, 858637), (44204, 638131), (49087, 574652), (66049, 427076), (98174, 287326), (106769, 264196), (132098, 213538), (143663, 196348)]