642131334

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1627

約数の個数: 128

約数和(自身を含む): 1670860800

約数和(自身を除く): 1028729466

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 31, 38, 39, 54, 57, 62, 78, 93, 114, 117, 171, 186, 234, 247, 279, 342, 351, 403, 494, 513, 558, 589, 702, 741, 806, 837, 1026, 1178, 1209, 1482, 1553, 1674, 1767, 2223, 2418, 3106, 3534, 3627, 4446, 4659, 5301, 6669, 7254, 7657, 9318, 10602, 10881, 13338, 13977, 15314, 15903, 20189, 21762, 22971, 27954, 29507, 31806, 40378, 41931, 45942, 48143, 59014, 60567, 68913, 83862, 88521, 96286, 121134, 137826, 144429, 177042, 181701, 206739, 265563, 288858, 363402, 383591, 413478, 433287, 531126, 545103, 625859, 767182, 796689, 866574, 914717, 1090206, 1150773, 1251718, 1299861, 1593378, 1829434, 1877577, 2301546, 2599722, 2744151, 3452319, 3755154, 5488302, 5632731, 6904638, 8232453, 10356957, 11265462, 11891321, 16464906, 16898193, 20713914, 23782642, 24697359, 33796386, 35673963, 49394718, 71347926, 107021889, 214043778, 321065667, 642131334]

約数ペア:

[(1, 642131334), (2, 321065667), (3, 214043778), (6, 107021889), (9, 71347926), (13, 49394718), (18, 35673963), (19, 33796386), (26, 24697359), (27, 23782642), (31, 20713914), (38, 16898193), (39, 16464906), (54, 11891321), (57, 11265462), (62, 10356957), (78, 8232453), (93, 6904638), (114, 5632731), (117, 5488302), (171, 3755154), (186, 3452319), (234, 2744151), (247, 2599722), (279, 2301546), (342, 1877577), (351, 1829434), (403, 1593378), (494, 1299861), (513, 1251718), (558, 1150773), (589, 1090206), (702, 914717), (741, 866574), (806, 796689), (837, 767182), (1026, 625859), (1178, 545103), (1209, 531126), (1482, 433287), (1553, 413478), (1674, 383591), (1767, 363402), (2223, 288858), (2418, 265563), (3106, 206739), (3534, 181701), (3627, 177042), (4446, 144429), (4659, 137826), (5301, 121134), (6669, 96286), (7254, 88521), (7657, 83862), (9318, 68913), (10602, 60567), (10881, 59014), (13338, 48143), (13977, 45942), (15314, 41931), (15903, 40378), (20189, 31806), (21762, 29507), (22971, 27954)]