18121920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:502

約数の個数: 112

約数和(自身を含む): 59009280

約数和(自身を除く): 40887360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 129, 160, 172, 192, 215, 240, 258, 320, 344, 430, 439, 480, 516, 645, 688, 860, 878, 960, 1032, 1290, 1317, 1376, 1720, 1756, 2064, 2195, 2580, 2634, 2752, 3440, 3512, 4128, 4390, 5160, 5268, 6585, 6880, 7024, 8256, 8780, 10320, 10536, 13170, 13760, 14048, 17560, 18877, 20640, 21072, 26340, 28096, 35120, 37754, 41280, 42144, 52680, 56631, 70240, 75508, 84288, 94385, 105360, 113262, 140480, 151016, 188770, 210720, 226524, 283155, 302032, 377540, 421440, 453048, 566310, 604064, 755080, 906096, 1132620, 1208128, 1510160, 1812192, 2265240, 3020320, 3624384, 4530480, 6040640, 9060960, 18121920]

約数ペア:

[(1, 18121920), (2, 9060960), (3, 6040640), (4, 4530480), (5, 3624384), (6, 3020320), (8, 2265240), (10, 1812192), (12, 1510160), (15, 1208128), (16, 1132620), (20, 906096), (24, 755080), (30, 604064), (32, 566310), (40, 453048), (43, 421440), (48, 377540), (60, 302032), (64, 283155), (80, 226524), (86, 210720), (96, 188770), (120, 151016), (129, 140480), (160, 113262), (172, 105360), (192, 94385), (215, 84288), (240, 75508), (258, 70240), (320, 56631), (344, 52680), (430, 42144), (439, 41280), (480, 37754), (516, 35120), (645, 28096), (688, 26340), (860, 21072), (878, 20640), (960, 18877), (1032, 17560), (1290, 14048), (1317, 13760), (1376, 13170), (1720, 10536), (1756, 10320), (2064, 8780), (2195, 8256), (2580, 7024), (2634, 6880), (2752, 6585), (3440, 5268), (3512, 5160), (4128, 4390)]