131298560

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1531}}^1$

素因数の和:1619

約数の個数: 72

約数和(自身を含む): 319403616

約数和(自身を除く): 188105056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 1072, 1280, 1340, 1531, 2144, 2680, 3062, 4288, 5360, 6124, 7655, 8576, 10720, 12248, 15310, 17152, 21440, 24496, 30620, 42880, 48992, 61240, 85760, 97984, 102577, 122480, 195968, 205154, 244960, 391936, 410308, 489920, 512885, 820616, 979840, 1025770, 1641232, 1959680, 2051540, 3282464, 4103080, 6564928, 8206160, 13129856, 16412320, 26259712, 32824640, 65649280, 131298560]

約数ペア:

[(1, 131298560), (2, 65649280), (4, 32824640), (5, 26259712), (8, 16412320), (10, 13129856), (16, 8206160), (20, 6564928), (32, 4103080), (40, 3282464), (64, 2051540), (67, 1959680), (80, 1641232), (128, 1025770), (134, 979840), (160, 820616), (256, 512885), (268, 489920), (320, 410308), (335, 391936), (536, 244960), (640, 205154), (670, 195968), (1072, 122480), (1280, 102577), (1340, 97984), (1531, 85760), (2144, 61240), (2680, 48992), (3062, 42880), (4288, 30620), (5360, 24496), (6124, 21440), (7655, 17152), (8576, 15310), (10720, 12248)]