66444980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67801}}^1$

素因数の和:67824

約数の個数: 36

約数和(自身を含む): 162317988

約数和(自身を除く): 95873008

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 67801, 135602, 271204, 339005, 474607, 678010, 949214, 1356020, 1898428, 2373035, 3322249, 4746070, 6644498, 9492140, 13288996, 16611245, 33222490, 66444980]

約数ペア:

[(1, 66444980), (2, 33222490), (4, 16611245), (5, 13288996), (7, 9492140), (10, 6644498), (14, 4746070), (20, 3322249), (28, 2373035), (35, 1898428), (49, 1356020), (70, 949214), (98, 678010), (140, 474607), (196, 339005), (245, 271204), (490, 135602), (980, 67801)]