20322620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{947}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 45390240

約数和(自身を除く): 25067620

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 947, 1073, 1894, 2146, 3788, 4292, 4735, 5365, 9470, 10730, 18940, 21460, 27463, 35039, 54926, 70078, 109852, 137315, 140156, 175195, 274630, 350390, 549260, 700780, 1016131, 2032262, 4064524, 5080655, 10161310, 20322620]

約数ペア:

[(1, 20322620), (2, 10161310), (4, 5080655), (5, 4064524), (10, 2032262), (20, 1016131), (29, 700780), (37, 549260), (58, 350390), (74, 274630), (116, 175195), (145, 140156), (148, 137315), (185, 109852), (290, 70078), (370, 54926), (580, 35039), (740, 27463), (947, 21460), (1073, 18940), (1894, 10730), (2146, 9470), (3788, 5365), (4292, 4735)]