219961780

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{11257}}^1$

素因数の和:12243

約数の個数: 24

約数和(自身を含む): 462433608

約数和(自身を除く): 242471828

約数列:

[1, 2, 4, 5, 10, 20, 977, 1954, 3908, 4885, 9770, 11257, 19540, 22514, 45028, 56285, 112570, 225140, 10998089, 21996178, 43992356, 54990445, 109980890, 219961780]

約数ペア:

[(1, 219961780), (2, 109980890), (4, 54990445), (5, 43992356), (10, 21996178), (20, 10998089), (977, 225140), (1954, 112570), (3908, 56285), (4885, 45028), (9770, 22514), (11257, 19540)]