18237520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1123}}^1$

素因数の和:1172

約数の個数: 80

約数和(自身を含む): 50175360

約数和(自身を除く): 31937840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1123, 1160, 1624, 2030, 2246, 2320, 3248, 4060, 4492, 5615, 7861, 8120, 8984, 11230, 15722, 16240, 17968, 22460, 31444, 32567, 39305, 44920, 62888, 65134, 78610, 89840, 125776, 130268, 157220, 162835, 227969, 260536, 314440, 325670, 455938, 521072, 628880, 651340, 911876, 1139845, 1302680, 1823752, 2279690, 2605360, 3647504, 4559380, 9118760, 18237520]

約数ペア:

[(1, 18237520), (2, 9118760), (4, 4559380), (5, 3647504), (7, 2605360), (8, 2279690), (10, 1823752), (14, 1302680), (16, 1139845), (20, 911876), (28, 651340), (29, 628880), (35, 521072), (40, 455938), (56, 325670), (58, 314440), (70, 260536), (80, 227969), (112, 162835), (116, 157220), (140, 130268), (145, 125776), (203, 89840), (232, 78610), (280, 65134), (290, 62888), (406, 44920), (464, 39305), (560, 32567), (580, 31444), (812, 22460), (1015, 17968), (1123, 16240), (1160, 15722), (1624, 11230), (2030, 8984), (2246, 8120), (2320, 7861), (3248, 5615), (4060, 4492)]