19303020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9749}}^1$

素因数の和:9775

約数の個数: 72

約数和(自身を含む): 63882000

約数和(自身を除く): 44578980

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, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9749, 19498, 29247, 38996, 48745, 58494, 87741, 97490, 107239, 116988, 146235, 175482, 194980, 214478, 292470, 321717, 350964, 428956, 438705, 536195, 584940, 643434, 877410, 965151, 1072390, 1286868, 1608585, 1754820, 1930302, 2144780, 3217170, 3860604, 4825755, 6434340, 9651510, 19303020]

約数ペア:

[(1, 19303020), (2, 9651510), (3, 6434340), (4, 4825755), (5, 3860604), (6, 3217170), (9, 2144780), (10, 1930302), (11, 1754820), (12, 1608585), (15, 1286868), (18, 1072390), (20, 965151), (22, 877410), (30, 643434), (33, 584940), (36, 536195), (44, 438705), (45, 428956), (55, 350964), (60, 321717), (66, 292470), (90, 214478), (99, 194980), (110, 175482), (132, 146235), (165, 116988), (180, 107239), (198, 97490), (220, 87741), (330, 58494), (396, 48745), (495, 38996), (660, 29247), (990, 19498), (1980, 9749)]