7328920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4261}}^1$

素因数の和:4315

約数の個数: 32

約数和(自身を含む): 16877520

約数和(自身を除く): 9548600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4261, 8522, 17044, 21305, 34088, 42610, 85220, 170440, 183223, 366446, 732892, 916115, 1465784, 1832230, 3664460, 7328920]

約数ペア:

[(1, 7328920), (2, 3664460), (4, 1832230), (5, 1465784), (8, 916115), (10, 732892), (20, 366446), (40, 183223), (43, 170440), (86, 85220), (172, 42610), (215, 34088), (344, 21305), (430, 17044), (860, 8522), (1720, 4261)]