66891160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{238897}}^1$

素因数の和:238915

約数の個数: 32

約数和(自身を含む): 172006560

約数和(自身を除く): 105115400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 238897, 477794, 955588, 1194485, 1672279, 1911176, 2388970, 3344558, 4777940, 6689116, 8361395, 9555880, 13378232, 16722790, 33445580, 66891160]

約数ペア:

[(1, 66891160), (2, 33445580), (4, 16722790), (5, 13378232), (7, 9555880), (8, 8361395), (10, 6689116), (14, 4777940), (20, 3344558), (28, 2388970), (35, 1911176), (40, 1672279), (56, 1194485), (70, 955588), (140, 477794), (280, 238897)]