18839680

素因数分解:

$2^7\times 5^1\times {\mathrm{29437}}^1$

素因数の和:29456

約数の個数: 32

約数和(自身を含む): 45040140

約数和(自身を除く): 26200460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 29437, 58874, 117748, 147185, 235496, 294370, 470992, 588740, 941984, 1177480, 1883968, 2354960, 3767936, 4709920, 9419840, 18839680]

約数ペア:

[(1, 18839680), (2, 9419840), (4, 4709920), (5, 3767936), (8, 2354960), (10, 1883968), (16, 1177480), (20, 941984), (32, 588740), (40, 470992), (64, 294370), (80, 235496), (128, 147185), (160, 117748), (320, 58874), (640, 29437)]