18041240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64433}}^1$

素因数の和:64451

約数の個数: 32

約数和(自身を含む): 46392480

約数和(自身を除く): 28351240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64433, 128866, 257732, 322165, 451031, 515464, 644330, 902062, 1288660, 1804124, 2255155, 2577320, 3608248, 4510310, 9020620, 18041240]

約数ペア:

[(1, 18041240), (2, 9020620), (4, 4510310), (5, 3608248), (7, 2577320), (8, 2255155), (10, 1804124), (14, 1288660), (20, 902062), (28, 644330), (35, 515464), (40, 451031), (56, 322165), (70, 257732), (140, 128866), (280, 64433)]