20906160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7919}}^1$

素因数の和:7946

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 49803600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7919, 15838, 23757, 31676, 39595, 47514, 63352, 79190, 87109, 95028, 118785, 126704, 158380, 174218, 190056, 237570, 261327, 316760, 348436, 380112, 435545, 475140, 522654, 633520, 696872, 871090, 950280, 1045308, 1306635, 1393744, 1742180, 1900560, 2090616, 2613270, 3484360, 4181232, 5226540, 6968720, 10453080, 20906160]

約数ペア:

[(1, 20906160), (2, 10453080), (3, 6968720), (4, 5226540), (5, 4181232), (6, 3484360), (8, 2613270), (10, 2090616), (11, 1900560), (12, 1742180), (15, 1393744), (16, 1306635), (20, 1045308), (22, 950280), (24, 871090), (30, 696872), (33, 633520), (40, 522654), (44, 475140), (48, 435545), (55, 380112), (60, 348436), (66, 316760), (80, 261327), (88, 237570), (110, 190056), (120, 174218), (132, 158380), (165, 126704), (176, 118785), (220, 95028), (240, 87109), (264, 79190), (330, 63352), (440, 47514), (528, 39595), (660, 31676), (880, 23757), (1320, 15838), (2640, 7919)]