65608640

素因数分解:

$2^6\times 5^1\times {\mathrm{421}}^1\times {\mathrm{487}}^1$

素因数の和:925

約数の個数: 56

約数和(自身を含む): 156923232

約数和(自身を除く): 91314592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 421, 487, 842, 974, 1684, 1948, 2105, 2435, 3368, 3896, 4210, 4870, 6736, 7792, 8420, 9740, 13472, 15584, 16840, 19480, 26944, 31168, 33680, 38960, 67360, 77920, 134720, 155840, 205027, 410054, 820108, 1025135, 1640216, 2050270, 3280432, 4100540, 6560864, 8201080, 13121728, 16402160, 32804320, 65608640]

約数ペア:

[(1, 65608640), (2, 32804320), (4, 16402160), (5, 13121728), (8, 8201080), (10, 6560864), (16, 4100540), (20, 3280432), (32, 2050270), (40, 1640216), (64, 1025135), (80, 820108), (160, 410054), (320, 205027), (421, 155840), (487, 134720), (842, 77920), (974, 67360), (1684, 38960), (1948, 33680), (2105, 31168), (2435, 26944), (3368, 19480), (3896, 16840), (4210, 15584), (4870, 13472), (6736, 9740), (7792, 8420)]