215681620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140053}}^1$

素因数の和:140080

約数の個数: 48

約数和(自身を含む): 564697728

約数和(自身を除く): 349016108

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 140053, 280106, 560212, 700265, 980371, 1400530, 1540583, 1960742, 2801060, 3081166, 3921484, 4901855, 6162332, 7702915, 9803710, 10784081, 15405830, 19607420, 21568162, 30811660, 43136324, 53920405, 107840810, 215681620]

約数ペア:

[(1, 215681620), (2, 107840810), (4, 53920405), (5, 43136324), (7, 30811660), (10, 21568162), (11, 19607420), (14, 15405830), (20, 10784081), (22, 9803710), (28, 7702915), (35, 6162332), (44, 4901855), (55, 3921484), (70, 3081166), (77, 2801060), (110, 1960742), (140, 1540583), (154, 1400530), (220, 980371), (308, 700265), (385, 560212), (770, 280106), (1540, 140053)]