9178780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 21266784

約数和(自身を除く): 12088004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 821, 860, 1118, 1642, 2236, 2795, 3284, 4105, 5590, 8210, 10673, 11180, 16420, 21346, 35303, 42692, 53365, 70606, 106730, 141212, 176515, 213460, 353030, 458939, 706060, 917878, 1835756, 2294695, 4589390, 9178780]

約数ペア:

[(1, 9178780), (2, 4589390), (4, 2294695), (5, 1835756), (10, 917878), (13, 706060), (20, 458939), (26, 353030), (43, 213460), (52, 176515), (65, 141212), (86, 106730), (130, 70606), (172, 53365), (215, 42692), (260, 35303), (430, 21346), (559, 16420), (821, 11180), (860, 10673), (1118, 8210), (1642, 5590), (2236, 4105), (2795, 3284)]