217879380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1210441}}^1$

素因数の和:1210456

約数の個数: 36

約数和(自身を含む): 660901332

約数和(自身を除く): 443021952

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1210441, 2420882, 3631323, 4841764, 6052205, 7262646, 10893969, 12104410, 14525292, 18156615, 21787938, 24208820, 36313230, 43575876, 54469845, 72626460, 108939690, 217879380]

約数ペア:

[(1, 217879380), (2, 108939690), (3, 72626460), (4, 54469845), (5, 43575876), (6, 36313230), (9, 24208820), (10, 21787938), (12, 18156615), (15, 14525292), (18, 12104410), (20, 10893969), (30, 7262646), (36, 6052205), (45, 4841764), (60, 3631323), (90, 2420882), (180, 1210441)]