168991780

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{5519}}^1$

素因数の和:7059

約数の個数: 24

約数和(自身を含む): 355178880

約数和(自身を除く): 186187100

約数列:

[1, 2, 4, 5, 10, 20, 1531, 3062, 5519, 6124, 7655, 11038, 15310, 22076, 27595, 30620, 55190, 110380, 8449589, 16899178, 33798356, 42247945, 84495890, 168991780]

約数ペア:

[(1, 168991780), (2, 84495890), (4, 42247945), (5, 33798356), (10, 16899178), (20, 8449589), (1531, 110380), (3062, 55190), (5519, 30620), (6124, 27595), (7655, 22076), (11038, 15310)]