3978880

素因数分解:

$2^7\times 5^1\times {\mathrm{6217}}^1$

素因数の和:6236

約数の個数: 32

約数和(自身を含む): 9513540

約数和(自身を除く): 5534660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 6217, 12434, 24868, 31085, 49736, 62170, 99472, 124340, 198944, 248680, 397888, 497360, 795776, 994720, 1989440, 3978880]

約数ペア:

[(1, 3978880), (2, 1989440), (4, 994720), (5, 795776), (8, 497360), (10, 397888), (16, 248680), (20, 198944), (32, 124340), (40, 99472), (64, 62170), (80, 49736), (128, 31085), (160, 24868), (320, 12434), (640, 6217)]