20206340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13121}}^1$

素因数の和:13148

約数の個数: 48

約数和(自身を含む): 52907904

約数和(自身を除く): 32701564

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, 13121, 26242, 52484, 65605, 91847, 131210, 144331, 183694, 262420, 288662, 367388, 459235, 577324, 721655, 918470, 1010317, 1443310, 1836940, 2020634, 2886620, 4041268, 5051585, 10103170, 20206340]

約数ペア:

[(1, 20206340), (2, 10103170), (4, 5051585), (5, 4041268), (7, 2886620), (10, 2020634), (11, 1836940), (14, 1443310), (20, 1010317), (22, 918470), (28, 721655), (35, 577324), (44, 459235), (55, 367388), (70, 288662), (77, 262420), (110, 183694), (140, 144331), (154, 131210), (220, 91847), (308, 65605), (385, 52484), (770, 26242), (1540, 13121)]