20898660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4409}}^1$

素因数の和:4500

約数の個数: 48

約数和(自身を含む): 59270400

約数和(自身を除く): 38371740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4409, 4740, 8818, 13227, 17636, 22045, 26454, 44090, 52908, 66135, 88180, 132270, 264540, 348311, 696622, 1044933, 1393244, 1741555, 2089866, 3483110, 4179732, 5224665, 6966220, 10449330, 20898660]

約数ペア:

[(1, 20898660), (2, 10449330), (3, 6966220), (4, 5224665), (5, 4179732), (6, 3483110), (10, 2089866), (12, 1741555), (15, 1393244), (20, 1044933), (30, 696622), (60, 348311), (79, 264540), (158, 132270), (237, 88180), (316, 66135), (395, 52908), (474, 44090), (790, 26454), (948, 22045), (1185, 17636), (1580, 13227), (2370, 8818), (4409, 4740)]