20197236440

素因数分解:

$2^3\times 5^1\times {\mathrm{73189}}^1\times {\mathrm{6899}}^1$

素因数の和:80099

約数の個数: 32

約数和(自身を含む): 45450990000

約数和(自身を除く): 25253753560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6899, 13798, 27596, 34495, 55192, 68990, 73189, 137980, 146378, 275960, 292756, 365945, 585512, 731890, 1463780, 2927560, 504930911, 1009861822, 2019723644, 2524654555, 4039447288, 5049309110, 10098618220, 20197236440]

約数ペア:

[(1, 20197236440), (2, 10098618220), (4, 5049309110), (5, 4039447288), (8, 2524654555), (10, 2019723644), (20, 1009861822), (40, 504930911), (6899, 2927560), (13798, 1463780), (27596, 731890), (34495, 585512), (55192, 365945), (68990, 292756), (73189, 275960), (137980, 146378)]