84878420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{385811}}^1$

素因数の和:385831

約数の個数: 24

約数和(自身を含む): 194449248

約数和(自身を除く): 109570828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 385811, 771622, 1543244, 1929055, 3858110, 4243921, 7716220, 8487842, 16975684, 21219605, 42439210, 84878420]

約数ペア:

[(1, 84878420), (2, 42439210), (4, 21219605), (5, 16975684), (10, 8487842), (11, 7716220), (20, 4243921), (22, 3858110), (44, 1929055), (55, 1543244), (110, 771622), (220, 385811)]