8112040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1459}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 18396000

約数和(自身を除く): 10283960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 1459, 2780, 2918, 5560, 5836, 7295, 11672, 14590, 29180, 58360, 202801, 405602, 811204, 1014005, 1622408, 2028010, 4056020, 8112040]

約数ペア:

[(1, 8112040), (2, 4056020), (4, 2028010), (5, 1622408), (8, 1014005), (10, 811204), (20, 405602), (40, 202801), (139, 58360), (278, 29180), (556, 14590), (695, 11672), (1112, 7295), (1390, 5836), (1459, 5560), (2780, 2918)]