81214370

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1\times {\mathrm{461}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 149022720

約数和(自身を除く): 67808350

約数列:

[1, 2, 5, 10, 79, 158, 223, 395, 446, 461, 790, 922, 1115, 2230, 2305, 4610, 17617, 35234, 36419, 72838, 88085, 102803, 176170, 182095, 205606, 364190, 514015, 1028030, 8121437, 16242874, 40607185, 81214370]

約数ペア:

[(1, 81214370), (2, 40607185), (5, 16242874), (10, 8121437), (79, 1028030), (158, 514015), (223, 364190), (395, 205606), (446, 182095), (461, 176170), (790, 102803), (922, 88085), (1115, 72838), (2230, 36419), (2305, 35234), (4610, 17617)]