81209656

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9137}}^1$

素因数の和:9255

約数の個数: 32

約数和(自身を含む): 167773680

約数和(自身を除く): 86564024

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 4444, 8888, 9137, 18274, 36548, 73096, 100507, 201014, 402028, 804056, 922837, 1845674, 3691348, 7382696, 10151207, 20302414, 40604828, 81209656]

約数ペア:

[(1, 81209656), (2, 40604828), (4, 20302414), (8, 10151207), (11, 7382696), (22, 3691348), (44, 1845674), (88, 922837), (101, 804056), (202, 402028), (404, 201014), (808, 100507), (1111, 73096), (2222, 36548), (4444, 18274), (8888, 9137)]