27986120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 65862720

約数和(自身を除く): 37876600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 307, 344, 424, 430, 530, 614, 860, 1060, 1228, 1535, 1720, 2120, 2279, 2456, 3070, 4558, 6140, 9116, 11395, 12280, 13201, 16271, 18232, 22790, 26402, 32542, 45580, 52804, 65084, 66005, 81355, 91160, 105608, 130168, 132010, 162710, 264020, 325420, 528040, 650840, 699653, 1399306, 2798612, 3498265, 5597224, 6996530, 13993060, 27986120]

約数ペア:

[(1, 27986120), (2, 13993060), (4, 6996530), (5, 5597224), (8, 3498265), (10, 2798612), (20, 1399306), (40, 699653), (43, 650840), (53, 528040), (86, 325420), (106, 264020), (172, 162710), (212, 132010), (215, 130168), (265, 105608), (307, 91160), (344, 81355), (424, 66005), (430, 65084), (530, 52804), (614, 45580), (860, 32542), (1060, 26402), (1228, 22790), (1535, 18232), (1720, 16271), (2120, 13201), (2279, 12280), (2456, 11395), (3070, 9116), (4558, 6140)]