640970442

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 1670123520

約数和(自身を除く): 1029153078

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 101, 103, 126, 163, 189, 202, 206, 303, 309, 326, 378, 489, 606, 618, 707, 721, 909, 927, 978, 1141, 1414, 1442, 1467, 1818, 1854, 2121, 2163, 2282, 2727, 2781, 2934, 3423, 4242, 4326, 4401, 5454, 5562, 6363, 6489, 6846, 8802, 10269, 10403, 12726, 12978, 16463, 16789, 19089, 19467, 20538, 20806, 30807, 31209, 32926, 33578, 38178, 38934, 49389, 50367, 61614, 62418, 72821, 93627, 98778, 100734, 115241, 117523, 145642, 148167, 151101, 187254, 218463, 230482, 235046, 280881, 296334, 302202, 345723, 352569, 436926, 444501, 453303, 561762, 655389, 691446, 705138, 889002, 906606, 1037169, 1057707, 1310778, 1695689, 1966167, 2074338, 2115414, 3111507, 3173121, 3391378, 3932334, 5087067, 6223014, 6346242, 10174134, 11869823, 15261201, 23739646, 30522402, 35609469, 45783603, 71218938, 91567206, 106828407, 213656814, 320485221, 640970442]

約数ペア:

[(1, 640970442), (2, 320485221), (3, 213656814), (6, 106828407), (7, 91567206), (9, 71218938), (14, 45783603), (18, 35609469), (21, 30522402), (27, 23739646), (42, 15261201), (54, 11869823), (63, 10174134), (101, 6346242), (103, 6223014), (126, 5087067), (163, 3932334), (189, 3391378), (202, 3173121), (206, 3111507), (303, 2115414), (309, 2074338), (326, 1966167), (378, 1695689), (489, 1310778), (606, 1057707), (618, 1037169), (707, 906606), (721, 889002), (909, 705138), (927, 691446), (978, 655389), (1141, 561762), (1414, 453303), (1442, 444501), (1467, 436926), (1818, 352569), (1854, 345723), (2121, 302202), (2163, 296334), (2282, 280881), (2727, 235046), (2781, 230482), (2934, 218463), (3423, 187254), (4242, 151101), (4326, 148167), (4401, 145642), (5454, 117523), (5562, 115241), (6363, 100734), (6489, 98778), (6846, 93627), (8802, 72821), (10269, 62418), (10403, 61614), (12726, 50367), (12978, 49389), (16463, 38934), (16789, 38178), (19089, 33578), (19467, 32926), (20538, 31209), (20806, 30807)]