18205124418

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1265

約数の個数: 144

約数和(自身を含む): 44534500920

約数和(自身を除く): 26329376502

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 73, 78, 93, 117, 146, 186, 219, 234, 279, 403, 438, 558, 657, 806, 949, 961, 1109, 1209, 1314, 1898, 1922, 2218, 2263, 2418, 2847, 2883, 3327, 3627, 4526, 5694, 5766, 6654, 6789, 7254, 8541, 8649, 9981, 12493, 13578, 14417, 17082, 17298, 19962, 20367, 24986, 28834, 29419, 34379, 37479, 40734, 43251, 58838, 68758, 70153, 74958, 80957, 86502, 88257, 103137, 112437, 129753, 140306, 161914, 176514, 206274, 210459, 224874, 242871, 259506, 264771, 309411, 420918, 446927, 485742, 529542, 618822, 631377, 728613, 893854, 911989, 1052441, 1065749, 1262754, 1340781, 1457226, 1823978, 2104882, 2131498, 2509667, 2681562, 2735967, 3157323, 3197247, 4022343, 5019334, 5471934, 6314646, 6394494, 7529001, 8044686, 8207901, 9471969, 9591741, 13854737, 15058002, 16415802, 18943938, 19183482, 22587003, 27709474, 32625671, 41564211, 45174006, 65251342, 77799677, 83128422, 97877013, 124692633, 155599354, 195754026, 233399031, 249385266, 293631039, 466798062, 587262078, 700197093, 1011395801, 1400394186, 2022791602, 3034187403, 6068374806, 9102562209, 18205124418]

約数ペア:

[(1, 18205124418), (2, 9102562209), (3, 6068374806), (6, 3034187403), (9, 2022791602), (13, 1400394186), (18, 1011395801), (26, 700197093), (31, 587262078), (39, 466798062), (62, 293631039), (73, 249385266), (78, 233399031), (93, 195754026), (117, 155599354), (146, 124692633), (186, 97877013), (219, 83128422), (234, 77799677), (279, 65251342), (403, 45174006), (438, 41564211), (558, 32625671), (657, 27709474), (806, 22587003), (949, 19183482), (961, 18943938), (1109, 16415802), (1209, 15058002), (1314, 13854737), (1898, 9591741), (1922, 9471969), (2218, 8207901), (2263, 8044686), (2418, 7529001), (2847, 6394494), (2883, 6314646), (3327, 5471934), (3627, 5019334), (4526, 4022343), (5694, 3197247), (5766, 3157323), (6654, 2735967), (6789, 2681562), (7254, 2509667), (8541, 2131498), (8649, 2104882), (9981, 1823978), (12493, 1457226), (13578, 1340781), (14417, 1262754), (17082, 1065749), (17298, 1052441), (19962, 911989), (20367, 893854), (24986, 728613), (28834, 631377), (29419, 618822), (34379, 529542), (37479, 485742), (40734, 446927), (43251, 420918), (58838, 309411), (68758, 264771), (70153, 259506), (74958, 242871), (80957, 224874), (86502, 210459), (88257, 206274), (103137, 176514), (112437, 161914), (129753, 140306)]