20016960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{719}}^1$

素因数の和:768

約数の個数: 112

約数和(自身を含む): 65836800

約数和(自身を除く): 45819840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 145, 160, 174, 192, 232, 240, 290, 320, 348, 435, 464, 480, 580, 696, 719, 870, 928, 960, 1160, 1392, 1438, 1740, 1856, 2157, 2320, 2784, 2876, 3480, 3595, 4314, 4640, 5568, 5752, 6960, 7190, 8628, 9280, 10785, 11504, 13920, 14380, 17256, 20851, 21570, 23008, 27840, 28760, 34512, 41702, 43140, 46016, 57520, 62553, 69024, 83404, 86280, 104255, 115040, 125106, 138048, 166808, 172560, 208510, 230080, 250212, 312765, 333616, 345120, 417020, 500424, 625530, 667232, 690240, 834040, 1000848, 1251060, 1334464, 1668080, 2001696, 2502120, 3336160, 4003392, 5004240, 6672320, 10008480, 20016960]

約数ペア:

[(1, 20016960), (2, 10008480), (3, 6672320), (4, 5004240), (5, 4003392), (6, 3336160), (8, 2502120), (10, 2001696), (12, 1668080), (15, 1334464), (16, 1251060), (20, 1000848), (24, 834040), (29, 690240), (30, 667232), (32, 625530), (40, 500424), (48, 417020), (58, 345120), (60, 333616), (64, 312765), (80, 250212), (87, 230080), (96, 208510), (116, 172560), (120, 166808), (145, 138048), (160, 125106), (174, 115040), (192, 104255), (232, 86280), (240, 83404), (290, 69024), (320, 62553), (348, 57520), (435, 46016), (464, 43140), (480, 41702), (580, 34512), (696, 28760), (719, 27840), (870, 23008), (928, 21570), (960, 20851), (1160, 17256), (1392, 14380), (1438, 13920), (1740, 11504), (1856, 10785), (2157, 9280), (2320, 8628), (2784, 7190), (2876, 6960), (3480, 5752), (3595, 5568), (4314, 4640)]