20541070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{353}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 42284592

約数和(自身を除く): 21743522

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 353, 506, 529, 706, 1058, 1265, 1765, 2530, 2645, 3530, 3883, 5290, 5819, 7766, 8119, 11638, 16238, 19415, 29095, 38830, 40595, 58190, 81190, 89309, 178618, 186737, 373474, 446545, 893090, 933685, 1867370, 2054107, 4108214, 10270535, 20541070]

約数ペア:

[(1, 20541070), (2, 10270535), (5, 4108214), (10, 2054107), (11, 1867370), (22, 933685), (23, 893090), (46, 446545), (55, 373474), (110, 186737), (115, 178618), (230, 89309), (253, 81190), (353, 58190), (506, 40595), (529, 38830), (706, 29095), (1058, 19415), (1265, 16238), (1765, 11638), (2530, 8119), (2645, 7766), (3530, 5819), (3883, 5290)]