12971240

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3907}}^1$

素因数の和:4001

約数の個数: 32

約数和(自身を含む): 29544480

約数和(自身を除く): 16573240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 3907, 7814, 15628, 19535, 31256, 39070, 78140, 156280, 324281, 648562, 1297124, 1621405, 2594248, 3242810, 6485620, 12971240]

約数ペア:

[(1, 12971240), (2, 6485620), (4, 3242810), (5, 2594248), (8, 1621405), (10, 1297124), (20, 648562), (40, 324281), (83, 156280), (166, 78140), (332, 39070), (415, 31256), (664, 19535), (830, 15628), (1660, 7814), (3320, 3907)]