8906840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5431}}^1$

素因数の和:5483

約数の個数: 32

約数和(自身を含む): 20532960

約数和(自身を除く): 11626120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5431, 10862, 21724, 27155, 43448, 54310, 108620, 217240, 222671, 445342, 890684, 1113355, 1781368, 2226710, 4453420, 8906840]

約数ペア:

[(1, 8906840), (2, 4453420), (4, 2226710), (5, 1781368), (8, 1113355), (10, 890684), (20, 445342), (40, 222671), (41, 217240), (82, 108620), (164, 54310), (205, 43448), (328, 27155), (410, 21724), (820, 10862), (1640, 5431)]