21768580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 49029120

約数和(自身を除く): 27260540

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1279, 1702, 2558, 3404, 4255, 5116, 6395, 8510, 12790, 17020, 25580, 29417, 47323, 58834, 94646, 117668, 147085, 189292, 236615, 294170, 473230, 588340, 946460, 1088429, 2176858, 4353716, 5442145, 10884290, 21768580]

約数ペア:

[(1, 21768580), (2, 10884290), (4, 5442145), (5, 4353716), (10, 2176858), (20, 1088429), (23, 946460), (37, 588340), (46, 473230), (74, 294170), (92, 236615), (115, 189292), (148, 147085), (185, 117668), (230, 94646), (370, 58834), (460, 47323), (740, 29417), (851, 25580), (1279, 17020), (1702, 12790), (2558, 8510), (3404, 6395), (4255, 5116)]