20688030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20897}}^1$

素因数の和:20921

約数の個数: 48

約数和(自身を含む): 58681584

約数和(自身を除く): 37993554

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20897, 41794, 62691, 104485, 125382, 188073, 208970, 229867, 313455, 376146, 459734, 626910, 689601, 940365, 1149335, 1379202, 1880730, 2068803, 2298670, 3448005, 4137606, 6896010, 10344015, 20688030]

約数ペア:

[(1, 20688030), (2, 10344015), (3, 6896010), (5, 4137606), (6, 3448005), (9, 2298670), (10, 2068803), (11, 1880730), (15, 1379202), (18, 1149335), (22, 940365), (30, 689601), (33, 626910), (45, 459734), (55, 376146), (66, 313455), (90, 229867), (99, 208970), (110, 188073), (165, 125382), (198, 104485), (330, 62691), (495, 41794), (990, 20897)]