305727440

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{19801}}^1$

素因数の和:20007

約数の個数: 40

約数和(自身を含む): 714535368

約数和(自身を除く): 408807928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 19801, 39602, 79204, 99005, 158408, 198010, 316816, 396020, 792040, 1584080, 3821593, 7643186, 15286372, 19107965, 30572744, 38215930, 61145488, 76431860, 152863720, 305727440]

約数ペア:

[(1, 305727440), (2, 152863720), (4, 76431860), (5, 61145488), (8, 38215930), (10, 30572744), (16, 19107965), (20, 15286372), (40, 7643186), (80, 3821593), (193, 1584080), (386, 792040), (772, 396020), (965, 316816), (1544, 198010), (1930, 158408), (3088, 99005), (3860, 79204), (7720, 39602), (15440, 19801)]