20555320

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3697}}^1$

素因数の和:3847

約数の個数: 32

約数和(自身を含む): 46594800

約数和(自身を除く): 26039480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3697, 5560, 7394, 14788, 18485, 29576, 36970, 73940, 147880, 513883, 1027766, 2055532, 2569415, 4111064, 5138830, 10277660, 20555320]

約数ペア:

[(1, 20555320), (2, 10277660), (4, 5138830), (5, 4111064), (8, 2569415), (10, 2055532), (20, 1027766), (40, 513883), (139, 147880), (278, 73940), (556, 36970), (695, 29576), (1112, 18485), (1390, 14788), (2780, 7394), (3697, 5560)]