2989360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 80

約数和(自身を含む): 7856640

約数和(自身を除く): 4867280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 79, 80, 86, 88, 110, 158, 172, 176, 215, 220, 316, 344, 395, 430, 440, 473, 632, 688, 790, 860, 869, 880, 946, 1264, 1580, 1720, 1738, 1892, 2365, 3160, 3397, 3440, 3476, 3784, 4345, 4730, 6320, 6794, 6952, 7568, 8690, 9460, 13588, 13904, 16985, 17380, 18920, 27176, 33970, 34760, 37367, 37840, 54352, 67940, 69520, 74734, 135880, 149468, 186835, 271760, 298936, 373670, 597872, 747340, 1494680, 2989360]

約数ペア:

[(1, 2989360), (2, 1494680), (4, 747340), (5, 597872), (8, 373670), (10, 298936), (11, 271760), (16, 186835), (20, 149468), (22, 135880), (40, 74734), (43, 69520), (44, 67940), (55, 54352), (79, 37840), (80, 37367), (86, 34760), (88, 33970), (110, 27176), (158, 18920), (172, 17380), (176, 16985), (215, 13904), (220, 13588), (316, 9460), (344, 8690), (395, 7568), (430, 6952), (440, 6794), (473, 6320), (632, 4730), (688, 4345), (790, 3784), (860, 3476), (869, 3440), (880, 3397), (946, 3160), (1264, 2365), (1580, 1892), (1720, 1738)]