18092680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 42546240

約数和(自身を除く): 24453560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 134, 157, 172, 215, 268, 314, 335, 344, 430, 536, 628, 670, 785, 860, 1256, 1340, 1570, 1720, 2680, 2881, 3140, 5762, 6280, 6751, 10519, 11524, 13502, 14405, 21038, 23048, 27004, 28810, 33755, 42076, 52595, 54008, 57620, 67510, 84152, 105190, 115240, 135020, 210380, 270040, 420760, 452317, 904634, 1809268, 2261585, 3618536, 4523170, 9046340, 18092680]

約数ペア:

[(1, 18092680), (2, 9046340), (4, 4523170), (5, 3618536), (8, 2261585), (10, 1809268), (20, 904634), (40, 452317), (43, 420760), (67, 270040), (86, 210380), (134, 135020), (157, 115240), (172, 105190), (215, 84152), (268, 67510), (314, 57620), (335, 54008), (344, 52595), (430, 42076), (536, 33755), (628, 28810), (670, 27004), (785, 23048), (860, 21038), (1256, 14405), (1340, 13502), (1570, 11524), (1720, 10519), (2680, 6751), (2881, 6280), (3140, 5762)]