78080

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1$

素因数の和:82

約数の個数: 36

約数和(自身を含む): 190092

約数和(自身を除く): 112012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 976, 1220, 1280, 1952, 2440, 3904, 4880, 7808, 9760, 15616, 19520, 39040, 78080]

約数ペア:

[(1, 78080), (2, 39040), (4, 19520), (5, 15616), (8, 9760), (10, 7808), (16, 4880), (20, 3904), (32, 2440), (40, 1952), (61, 1280), (64, 1220), (80, 976), (122, 640), (128, 610), (160, 488), (244, 320), (256, 305)]