20888820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:502

約数の個数: 96

約数和(自身を含む): 65802240

約数和(自身を除く): 44913420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 101, 108, 135, 180, 202, 270, 303, 383, 404, 505, 540, 606, 766, 909, 1010, 1149, 1212, 1515, 1532, 1818, 1915, 2020, 2298, 2727, 3030, 3447, 3636, 3830, 4545, 4596, 5454, 5745, 6060, 6894, 7660, 9090, 10341, 10908, 11490, 13635, 13788, 17235, 18180, 20682, 22980, 27270, 34470, 38683, 41364, 51705, 54540, 68940, 77366, 103410, 116049, 154732, 193415, 206820, 232098, 348147, 386830, 464196, 580245, 696294, 773660, 1044441, 1160490, 1392588, 1740735, 2088882, 2320980, 3481470, 4177764, 5222205, 6962940, 10444410, 20888820]

約数ペア:

[(1, 20888820), (2, 10444410), (3, 6962940), (4, 5222205), (5, 4177764), (6, 3481470), (9, 2320980), (10, 2088882), (12, 1740735), (15, 1392588), (18, 1160490), (20, 1044441), (27, 773660), (30, 696294), (36, 580245), (45, 464196), (54, 386830), (60, 348147), (90, 232098), (101, 206820), (108, 193415), (135, 154732), (180, 116049), (202, 103410), (270, 77366), (303, 68940), (383, 54540), (404, 51705), (505, 41364), (540, 38683), (606, 34470), (766, 27270), (909, 22980), (1010, 20682), (1149, 18180), (1212, 17235), (1515, 13788), (1532, 13635), (1818, 11490), (1915, 10908), (2020, 10341), (2298, 9090), (2727, 7660), (3030, 6894), (3447, 6060), (3636, 5745), (3830, 5454), (4545, 4596)]