20407860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{937}}^1$

素因数の和:974

約数の個数: 108

約数和(自身を含む): 68115684

約数和(自身を除く): 47707824

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 937, 990, 1089, 1210, 1452, 1815, 1874, 1980, 2178, 2420, 2811, 3630, 3748, 4356, 4685, 5445, 5622, 7260, 8433, 9370, 10307, 10890, 11244, 14055, 16866, 18740, 20614, 21780, 28110, 30921, 33732, 41228, 42165, 51535, 56220, 61842, 84330, 92763, 103070, 113377, 123684, 154605, 168660, 185526, 206140, 226754, 309210, 340131, 371052, 453508, 463815, 566885, 618420, 680262, 927630, 1020393, 1133770, 1360524, 1700655, 1855260, 2040786, 2267540, 3401310, 4081572, 5101965, 6802620, 10203930, 20407860]

約数ペア:

[(1, 20407860), (2, 10203930), (3, 6802620), (4, 5101965), (5, 4081572), (6, 3401310), (9, 2267540), (10, 2040786), (11, 1855260), (12, 1700655), (15, 1360524), (18, 1133770), (20, 1020393), (22, 927630), (30, 680262), (33, 618420), (36, 566885), (44, 463815), (45, 453508), (55, 371052), (60, 340131), (66, 309210), (90, 226754), (99, 206140), (110, 185526), (121, 168660), (132, 154605), (165, 123684), (180, 113377), (198, 103070), (220, 92763), (242, 84330), (330, 61842), (363, 56220), (396, 51535), (484, 42165), (495, 41228), (605, 33732), (660, 30921), (726, 28110), (937, 21780), (990, 20614), (1089, 18740), (1210, 16866), (1452, 14055), (1815, 11244), (1874, 10890), (1980, 10307), (2178, 9370), (2420, 8433), (2811, 7260), (3630, 5622), (3748, 5445), (4356, 4685)]