390185540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1\times {\mathrm{937}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 839607552

約数和(自身を除く): 449422012

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 443, 470, 886, 937, 940, 1772, 1874, 2215, 3748, 4430, 4685, 8860, 9370, 18740, 20821, 41642, 44039, 83284, 88078, 104105, 176156, 208210, 220195, 415091, 416420, 440390, 830182, 880780, 1660364, 2075455, 4150910, 8301820, 19509277, 39018554, 78037108, 97546385, 195092770, 390185540]

約数ペア:

[(1, 390185540), (2, 195092770), (4, 97546385), (5, 78037108), (10, 39018554), (20, 19509277), (47, 8301820), (94, 4150910), (188, 2075455), (235, 1660364), (443, 880780), (470, 830182), (886, 440390), (937, 416420), (940, 415091), (1772, 220195), (1874, 208210), (2215, 176156), (3748, 104105), (4430, 88078), (4685, 83284), (8860, 44039), (9370, 41642), (18740, 20821)]