25793980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 30422180

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 337, 356, 430, 445, 674, 860, 890, 1348, 1685, 1780, 3370, 3827, 6740, 7654, 14491, 15308, 19135, 28982, 29993, 38270, 57964, 59986, 72455, 76540, 119972, 144910, 149965, 289820, 299930, 599860, 1289699, 2579398, 5158796, 6448495, 12896990, 25793980]

約数ペア:

[(1, 25793980), (2, 12896990), (4, 6448495), (5, 5158796), (10, 2579398), (20, 1289699), (43, 599860), (86, 299930), (89, 289820), (172, 149965), (178, 144910), (215, 119972), (337, 76540), (356, 72455), (430, 59986), (445, 57964), (674, 38270), (860, 29993), (890, 28982), (1348, 19135), (1685, 15308), (1780, 14491), (3370, 7654), (3827, 6740)]