981389185

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{20663}}^1$

素因数の和:20757

約数の個数: 32

約数和(自身を含む): 1428295680

約数和(自身を除く): 446906495

約数列:

[1, 5, 7, 23, 35, 59, 115, 161, 295, 413, 805, 1357, 2065, 6785, 9499, 20663, 47495, 103315, 144641, 475249, 723205, 1219117, 2376245, 3326743, 6095585, 8533819, 16633715, 28039691, 42669095, 140198455, 196277837, 981389185]

約数ペア:

[(1, 981389185), (5, 196277837), (7, 140198455), (23, 42669095), (35, 28039691), (59, 16633715), (115, 8533819), (161, 6095585), (295, 3326743), (413, 2376245), (805, 1219117), (1357, 723205), (2065, 475249), (6785, 144641), (9499, 103315), (20663, 47495)]