20869140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3191}}^1$

素因数の和:3312

約数の個数: 48

約数和(自身を含む): 58988160

約数和(自身を除く): 38119020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3191, 3270, 6382, 6540, 9573, 12764, 15955, 19146, 31910, 38292, 47865, 63820, 95730, 191460, 347819, 695638, 1043457, 1391276, 1739095, 2086914, 3478190, 4173828, 5217285, 6956380, 10434570, 20869140]

約数ペア:

[(1, 20869140), (2, 10434570), (3, 6956380), (4, 5217285), (5, 4173828), (6, 3478190), (10, 2086914), (12, 1739095), (15, 1391276), (20, 1043457), (30, 695638), (60, 347819), (109, 191460), (218, 95730), (327, 63820), (436, 47865), (545, 38292), (654, 31910), (1090, 19146), (1308, 15955), (1635, 12764), (2180, 9573), (3191, 6540), (3270, 6382)]