30971480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{24977}}^1$

素因数の和:25019

約数の個数: 32

約数和(自身を含む): 71936640

約数和(自身を除く): 40965160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 24977, 49954, 99908, 124885, 199816, 249770, 499540, 774287, 999080, 1548574, 3097148, 3871435, 6194296, 7742870, 15485740, 30971480]

約数ペア:

[(1, 30971480), (2, 15485740), (4, 7742870), (5, 6194296), (8, 3871435), (10, 3097148), (20, 1548574), (31, 999080), (40, 774287), (62, 499540), (124, 249770), (155, 199816), (248, 124885), (310, 99908), (620, 49954), (1240, 24977)]