18485420

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{6121}}^1$

素因数の和:6281

約数の個数: 24

約数和(自身を含む): 39082848

約数和(自身を除く): 20597428

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 6121, 12242, 24484, 30605, 61210, 122420, 924271, 1848542, 3697084, 4621355, 9242710, 18485420]

約数ペア:

[(1, 18485420), (2, 9242710), (4, 4621355), (5, 3697084), (10, 1848542), (20, 924271), (151, 122420), (302, 61210), (604, 30605), (755, 24484), (1510, 12242), (3020, 6121)]