88902220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{4001}}^1$

素因数の和:4122

約数の個数: 48

約数和(自身を含む): 205734816

約数和(自身を除く): 116832596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 4001, 4444, 5555, 8002, 11110, 16004, 20005, 22220, 40010, 44011, 80020, 88022, 176044, 220055, 404101, 440110, 808202, 880220, 1616404, 2020505, 4041010, 4445111, 8082020, 8890222, 17780444, 22225555, 44451110, 88902220]

約数ペア:

[(1, 88902220), (2, 44451110), (4, 22225555), (5, 17780444), (10, 8890222), (11, 8082020), (20, 4445111), (22, 4041010), (44, 2020505), (55, 1616404), (101, 880220), (110, 808202), (202, 440110), (220, 404101), (404, 220055), (505, 176044), (1010, 88022), (1111, 80020), (2020, 44011), (2222, 40010), (4001, 22220), (4444, 20005), (5555, 16004), (8002, 11110)]