19966980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30253}}^1$

素因数の和:30276

約数の個数: 48

約数和(自身を含む): 60992064

約数和(自身を除く): 41025084

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 30253, 60506, 90759, 121012, 151265, 181518, 302530, 332783, 363036, 453795, 605060, 665566, 907590, 998349, 1331132, 1663915, 1815180, 1996698, 3327830, 3993396, 4991745, 6655660, 9983490, 19966980]

約数ペア:

[(1, 19966980), (2, 9983490), (3, 6655660), (4, 4991745), (5, 3993396), (6, 3327830), (10, 1996698), (11, 1815180), (12, 1663915), (15, 1331132), (20, 998349), (22, 907590), (30, 665566), (33, 605060), (44, 453795), (55, 363036), (60, 332783), (66, 302530), (110, 181518), (132, 151265), (165, 121012), (220, 90759), (330, 60506), (660, 30253)]