21575760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89899}}^1$

素因数の和:89915

約数の個数: 40

約数和(自身を含む): 66885600

約数和(自身を除く): 45309840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89899, 179798, 269697, 359596, 449495, 539394, 719192, 898990, 1078788, 1348485, 1438384, 1797980, 2157576, 2696970, 3595960, 4315152, 5393940, 7191920, 10787880, 21575760]

約数ペア:

[(1, 21575760), (2, 10787880), (3, 7191920), (4, 5393940), (5, 4315152), (6, 3595960), (8, 2696970), (10, 2157576), (12, 1797980), (15, 1438384), (16, 1348485), (20, 1078788), (24, 898990), (30, 719192), (40, 539394), (48, 449495), (60, 359596), (80, 269697), (120, 179798), (240, 89899)]