18357560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 45571680

約数和(自身を除く): 27214120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 821, 860, 1118, 1642, 1720, 2236, 2795, 3284, 4105, 4472, 5590, 6568, 8210, 10673, 11180, 16420, 21346, 22360, 32840, 35303, 42692, 53365, 70606, 85384, 106730, 141212, 176515, 213460, 282424, 353030, 426920, 458939, 706060, 917878, 1412120, 1835756, 2294695, 3671512, 4589390, 9178780, 18357560]

約数ペア:

[(1, 18357560), (2, 9178780), (4, 4589390), (5, 3671512), (8, 2294695), (10, 1835756), (13, 1412120), (20, 917878), (26, 706060), (40, 458939), (43, 426920), (52, 353030), (65, 282424), (86, 213460), (104, 176515), (130, 141212), (172, 106730), (215, 85384), (260, 70606), (344, 53365), (430, 42692), (520, 35303), (559, 32840), (821, 22360), (860, 21346), (1118, 16420), (1642, 11180), (1720, 10673), (2236, 8210), (2795, 6568), (3284, 5590), (4105, 4472)]