51356240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:181

約数の個数: 160

約数和(自身を含む): 142490880

約数和(自身を除く): 91134640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 23, 26, 38, 40, 46, 52, 65, 76, 80, 92, 95, 104, 113, 115, 130, 152, 184, 190, 208, 226, 230, 247, 260, 299, 304, 368, 380, 437, 452, 460, 494, 520, 565, 598, 760, 874, 904, 920, 988, 1040, 1130, 1196, 1235, 1469, 1495, 1520, 1748, 1808, 1840, 1976, 2147, 2185, 2260, 2392, 2470, 2599, 2938, 2990, 3496, 3952, 4294, 4370, 4520, 4784, 4940, 5198, 5681, 5876, 5980, 6992, 7345, 8588, 8740, 9040, 9880, 10396, 10735, 11362, 11752, 11960, 12995, 14690, 17176, 17480, 19760, 20792, 21470, 22724, 23504, 23920, 25990, 27911, 28405, 29380, 33787, 34352, 34960, 41584, 42940, 45448, 49381, 51980, 55822, 56810, 58760, 67574, 85880, 90896, 98762, 103960, 111644, 113620, 117520, 135148, 139555, 168935, 171760, 197524, 207920, 223288, 227240, 246905, 270296, 279110, 337870, 395048, 446576, 454480, 493810, 540592, 558220, 641953, 675740, 790096, 987620, 1116440, 1283906, 1351480, 1975240, 2232880, 2567812, 2702960, 3209765, 3950480, 5135624, 6419530, 10271248, 12839060, 25678120, 51356240]

約数ペア:

[(1, 51356240), (2, 25678120), (4, 12839060), (5, 10271248), (8, 6419530), (10, 5135624), (13, 3950480), (16, 3209765), (19, 2702960), (20, 2567812), (23, 2232880), (26, 1975240), (38, 1351480), (40, 1283906), (46, 1116440), (52, 987620), (65, 790096), (76, 675740), (80, 641953), (92, 558220), (95, 540592), (104, 493810), (113, 454480), (115, 446576), (130, 395048), (152, 337870), (184, 279110), (190, 270296), (208, 246905), (226, 227240), (230, 223288), (247, 207920), (260, 197524), (299, 171760), (304, 168935), (368, 139555), (380, 135148), (437, 117520), (452, 113620), (460, 111644), (494, 103960), (520, 98762), (565, 90896), (598, 85880), (760, 67574), (874, 58760), (904, 56810), (920, 55822), (988, 51980), (1040, 49381), (1130, 45448), (1196, 42940), (1235, 41584), (1469, 34960), (1495, 34352), (1520, 33787), (1748, 29380), (1808, 28405), (1840, 27911), (1976, 25990), (2147, 23920), (2185, 23504), (2260, 22724), (2392, 21470), (2470, 20792), (2599, 19760), (2938, 17480), (2990, 17176), (3496, 14690), (3952, 12995), (4294, 11960), (4370, 11752), (4520, 11362), (4784, 10735), (4940, 10396), (5198, 9880), (5681, 9040), (5876, 8740), (5980, 8588), (6992, 7345)]