18826720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:608

約数の個数: 96

約数和(自身を含む): 51166080

約数和(自身を除く): 32339360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 352, 380, 418, 440, 563, 608, 760, 836, 880, 1045, 1126, 1520, 1672, 1760, 2090, 2252, 2815, 3040, 3344, 4180, 4504, 5630, 6193, 6688, 8360, 9008, 10697, 11260, 12386, 16720, 18016, 21394, 22520, 24772, 30965, 33440, 42788, 45040, 49544, 53485, 61930, 85576, 90080, 99088, 106970, 117667, 123860, 171152, 198176, 213940, 235334, 247720, 342304, 427880, 470668, 495440, 588335, 855760, 941336, 990880, 1176670, 1711520, 1882672, 2353340, 3765344, 4706680, 9413360, 18826720]

約数ペア:

[(1, 18826720), (2, 9413360), (4, 4706680), (5, 3765344), (8, 2353340), (10, 1882672), (11, 1711520), (16, 1176670), (19, 990880), (20, 941336), (22, 855760), (32, 588335), (38, 495440), (40, 470668), (44, 427880), (55, 342304), (76, 247720), (80, 235334), (88, 213940), (95, 198176), (110, 171152), (152, 123860), (160, 117667), (176, 106970), (190, 99088), (209, 90080), (220, 85576), (304, 61930), (352, 53485), (380, 49544), (418, 45040), (440, 42788), (563, 33440), (608, 30965), (760, 24772), (836, 22520), (880, 21394), (1045, 18016), (1126, 16720), (1520, 12386), (1672, 11260), (1760, 10697), (2090, 9008), (2252, 8360), (2815, 6688), (3040, 6193), (3344, 5630), (4180, 4504)]