11978440

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{863}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 27060480

約数和(自身を除く): 15082040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 863, 1388, 1726, 1735, 2776, 3452, 3470, 4315, 6904, 6940, 8630, 13880, 17260, 34520, 299461, 598922, 1197844, 1497305, 2395688, 2994610, 5989220, 11978440]

約数ペア:

[(1, 11978440), (2, 5989220), (4, 2994610), (5, 2395688), (8, 1497305), (10, 1197844), (20, 598922), (40, 299461), (347, 34520), (694, 17260), (863, 13880), (1388, 8630), (1726, 6940), (1735, 6904), (2776, 4315), (3452, 3470)]