123405740

素因数分解:

$2^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{21059}}^1$

素因数の和:21361

約数の個数: 24

約数和(自身を含む): 260048880

約数和(自身を除く): 136643140

約数列:

[1, 2, 4, 5, 10, 20, 293, 586, 1172, 1465, 2930, 5860, 21059, 42118, 84236, 105295, 210590, 421180, 6170287, 12340574, 24681148, 30851435, 61702870, 123405740]

約数ペア:

[(1, 123405740), (2, 61702870), (4, 30851435), (5, 24681148), (10, 12340574), (20, 6170287), (293, 421180), (586, 210590), (1172, 105295), (1465, 84236), (2930, 42118), (5860, 21059)]