20907040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1697}}^1$

素因数の和:1730

約数の個数: 96

約数和(自身を含む): 61617024

約数和(自身を除く): 40709984

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1697, 1760, 2464, 3080, 3394, 6160, 6788, 8485, 11879, 12320, 13576, 16970, 18667, 23758, 27152, 33940, 37334, 47516, 54304, 59395, 67880, 74668, 93335, 95032, 118790, 130669, 135760, 149336, 186670, 190064, 237580, 261338, 271520, 298672, 373340, 380128, 475160, 522676, 597344, 653345, 746680, 950320, 1045352, 1306690, 1493360, 1900640, 2090704, 2613380, 2986720, 4181408, 5226760, 10453520, 20907040]

約数ペア:

[(1, 20907040), (2, 10453520), (4, 5226760), (5, 4181408), (7, 2986720), (8, 2613380), (10, 2090704), (11, 1900640), (14, 1493360), (16, 1306690), (20, 1045352), (22, 950320), (28, 746680), (32, 653345), (35, 597344), (40, 522676), (44, 475160), (55, 380128), (56, 373340), (70, 298672), (77, 271520), (80, 261338), (88, 237580), (110, 190064), (112, 186670), (140, 149336), (154, 135760), (160, 130669), (176, 118790), (220, 95032), (224, 93335), (280, 74668), (308, 67880), (352, 59395), (385, 54304), (440, 47516), (560, 37334), (616, 33940), (770, 27152), (880, 23758), (1120, 18667), (1232, 16970), (1540, 13576), (1697, 12320), (1760, 11879), (2464, 8485), (3080, 6788), (3394, 6160)]