164444980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{167801}}^1$

素因数の和:167824

約数の個数: 36

約数和(自身を含む): 401717988

約数和(自身を除く): 237273008

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 167801, 335602, 671204, 839005, 1174607, 1678010, 2349214, 3356020, 4698428, 5873035, 8222249, 11746070, 16444498, 23492140, 32888996, 41111245, 82222490, 164444980]

約数ペア:

[(1, 164444980), (2, 82222490), (4, 41111245), (5, 32888996), (7, 23492140), (10, 16444498), (14, 11746070), (20, 8222249), (28, 5873035), (35, 4698428), (49, 3356020), (70, 2349214), (98, 1678010), (140, 1174607), (196, 839005), (245, 671204), (490, 335602), (980, 167801)]