20710160

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3119}}^1$

素因数の和:3215

約数の個数: 40

約数和(自身を含む): 48746880

約数和(自身を除く): 28036720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3119, 3320, 6238, 6640, 12476, 15595, 24952, 31190, 49904, 62380, 124760, 249520, 258877, 517754, 1035508, 1294385, 2071016, 2588770, 4142032, 5177540, 10355080, 20710160]

約数ペア:

[(1, 20710160), (2, 10355080), (4, 5177540), (5, 4142032), (8, 2588770), (10, 2071016), (16, 1294385), (20, 1035508), (40, 517754), (80, 258877), (83, 249520), (166, 124760), (332, 62380), (415, 49904), (664, 31190), (830, 24952), (1328, 15595), (1660, 12476), (3119, 6640), (3320, 6238)]