172919680

素因数分解:

$2^7\times 5^1\times {\mathrm{271}}^1\times {\mathrm{997}}^1$

素因数の和:1287

約数の個数: 64

約数和(自身を含む): 415327680

約数和(自身を除く): 242408000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 271, 320, 542, 640, 997, 1084, 1355, 1994, 2168, 2710, 3988, 4336, 4985, 5420, 7976, 8672, 9970, 10840, 15952, 17344, 19940, 21680, 31904, 34688, 39880, 43360, 63808, 79760, 86720, 127616, 159520, 173440, 270187, 319040, 540374, 638080, 1080748, 1350935, 2161496, 2701870, 4322992, 5403740, 8645984, 10807480, 17291968, 21614960, 34583936, 43229920, 86459840, 172919680]

約数ペア:

[(1, 172919680), (2, 86459840), (4, 43229920), (5, 34583936), (8, 21614960), (10, 17291968), (16, 10807480), (20, 8645984), (32, 5403740), (40, 4322992), (64, 2701870), (80, 2161496), (128, 1350935), (160, 1080748), (271, 638080), (320, 540374), (542, 319040), (640, 270187), (997, 173440), (1084, 159520), (1355, 127616), (1994, 86720), (2168, 79760), (2710, 63808), (3988, 43360), (4336, 39880), (4985, 34688), (5420, 31904), (7976, 21680), (8672, 19940), (9970, 17344), (10840, 15952)]