399223020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{950531}}^1$

素因数の和:950550

約数の個数: 48

約数和(自身を含む): 1277515008

約数和(自身を除く): 878291988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 950531, 1901062, 2851593, 3802124, 4752655, 5703186, 6653717, 9505310, 11406372, 13307434, 14257965, 19010620, 19961151, 26614868, 28515930, 33268585, 39922302, 57031860, 66537170, 79844604, 99805755, 133074340, 199611510, 399223020]

約数ペア:

[(1, 399223020), (2, 199611510), (3, 133074340), (4, 99805755), (5, 79844604), (6, 66537170), (7, 57031860), (10, 39922302), (12, 33268585), (14, 28515930), (15, 26614868), (20, 19961151), (21, 19010620), (28, 14257965), (30, 13307434), (35, 11406372), (42, 9505310), (60, 6653717), (70, 5703186), (84, 4752655), (105, 3802124), (140, 2851593), (210, 1901062), (420, 950531)]