217927980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1210711}}^1$

素因数の和:1210726

約数の個数: 36

約数和(自身を含む): 661048752

約数和(自身を除く): 443120772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1210711, 2421422, 3632133, 4842844, 6053555, 7264266, 10896399, 12107110, 14528532, 18160665, 21792798, 24214220, 36321330, 43585596, 54481995, 72642660, 108963990, 217927980]

約数ペア:

[(1, 217927980), (2, 108963990), (3, 72642660), (4, 54481995), (5, 43585596), (6, 36321330), (9, 24214220), (10, 21792798), (12, 18160665), (15, 14528532), (18, 12107110), (20, 10896399), (30, 7264266), (36, 6053555), (45, 4842844), (60, 3632133), (90, 2421422), (180, 1210711)]