129548680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:854

約数の個数: 64

約数和(自身を含む): 301435200

約数和(自身を除く): 171886520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 109, 172, 215, 218, 344, 430, 436, 545, 691, 860, 872, 1090, 1382, 1720, 2180, 2764, 3455, 4360, 4687, 5528, 6910, 9374, 13820, 18748, 23435, 27640, 29713, 37496, 46870, 59426, 75319, 93740, 118852, 148565, 150638, 187480, 237704, 297130, 301276, 376595, 594260, 602552, 753190, 1188520, 1506380, 3012760, 3238717, 6477434, 12954868, 16193585, 25909736, 32387170, 64774340, 129548680]

約数ペア:

[(1, 129548680), (2, 64774340), (4, 32387170), (5, 25909736), (8, 16193585), (10, 12954868), (20, 6477434), (40, 3238717), (43, 3012760), (86, 1506380), (109, 1188520), (172, 753190), (215, 602552), (218, 594260), (344, 376595), (430, 301276), (436, 297130), (545, 237704), (691, 187480), (860, 150638), (872, 148565), (1090, 118852), (1382, 93740), (1720, 75319), (2180, 59426), (2764, 46870), (3455, 37496), (4360, 29713), (4687, 27640), (5528, 23435), (6910, 18748), (9374, 13820)]