77905720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{52639}}^1$

素因数の和:52687

約数の個数: 32

約数和(自身を含む): 180028800

約数和(自身を除く): 102123080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 52639, 105278, 210556, 263195, 421112, 526390, 1052780, 1947643, 2105560, 3895286, 7790572, 9738215, 15581144, 19476430, 38952860, 77905720]

約数ペア:

[(1, 77905720), (2, 38952860), (4, 19476430), (5, 15581144), (8, 9738215), (10, 7790572), (20, 3895286), (37, 2105560), (40, 1947643), (74, 1052780), (148, 526390), (185, 421112), (296, 263195), (370, 210556), (740, 105278), (1480, 52639)]