30986960

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4903}}^1$

素因数の和:4995

約数の個数: 40

約数和(自身を含む): 72971520

約数和(自身を除く): 41984560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4903, 6320, 9806, 19612, 24515, 39224, 49030, 78448, 98060, 196120, 387337, 392240, 774674, 1549348, 1936685, 3098696, 3873370, 6197392, 7746740, 15493480, 30986960]

約数ペア:

[(1, 30986960), (2, 15493480), (4, 7746740), (5, 6197392), (8, 3873370), (10, 3098696), (16, 1936685), (20, 1549348), (40, 774674), (79, 392240), (80, 387337), (158, 196120), (316, 98060), (395, 78448), (632, 49030), (790, 39224), (1264, 24515), (1580, 19612), (3160, 9806), (4903, 6320)]