123406240

素因数分解:

$2^5\times 5^1\times {\mathrm{771289}}^1$

素因数の和:771304

約数の個数: 24

約数和(自身を含む): 291547620

約数和(自身を除く): 168141380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 771289, 1542578, 3085156, 3856445, 6170312, 7712890, 12340624, 15425780, 24681248, 30851560, 61703120, 123406240]

約数ペア:

[(1, 123406240), (2, 61703120), (4, 30851560), (5, 24681248), (8, 15425780), (10, 12340624), (16, 7712890), (20, 6170312), (32, 3856445), (40, 3085156), (80, 1542578), (160, 771289)]