209589040

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{5683}}^1$

素因数の和:6157

約数の個数: 40

約数和(自身を含む): 488437488

約数和(自身を除く): 278848448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1844, 2305, 3688, 4610, 5683, 7376, 9220, 11366, 18440, 22732, 28415, 36880, 45464, 56830, 90928, 113660, 227320, 454640, 2619863, 5239726, 10479452, 13099315, 20958904, 26198630, 41917808, 52397260, 104794520, 209589040]

約数ペア:

[(1, 209589040), (2, 104794520), (4, 52397260), (5, 41917808), (8, 26198630), (10, 20958904), (16, 13099315), (20, 10479452), (40, 5239726), (80, 2619863), (461, 454640), (922, 227320), (1844, 113660), (2305, 90928), (3688, 56830), (4610, 45464), (5683, 36880), (7376, 28415), (9220, 22732), (11366, 18440)]