72293320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3821}}^1$

素因数の和:3886

約数の個数: 64

約数和(自身を含む): 181621440

約数和(自身を除く): 109328120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 3821, 4730, 7642, 9460, 15284, 18920, 19105, 30568, 38210, 42031, 76420, 84062, 152840, 164303, 168124, 210155, 328606, 336248, 420310, 657212, 821515, 840620, 1314424, 1643030, 1681240, 1807333, 3286060, 3614666, 6572120, 7229332, 9036665, 14458664, 18073330, 36146660, 72293320]

約数ペア:

[(1, 72293320), (2, 36146660), (4, 18073330), (5, 14458664), (8, 9036665), (10, 7229332), (11, 6572120), (20, 3614666), (22, 3286060), (40, 1807333), (43, 1681240), (44, 1643030), (55, 1314424), (86, 840620), (88, 821515), (110, 657212), (172, 420310), (215, 336248), (220, 328606), (344, 210155), (430, 168124), (440, 164303), (473, 152840), (860, 84062), (946, 76420), (1720, 42031), (1892, 38210), (2365, 30568), (3784, 19105), (3821, 18920), (4730, 15284), (7642, 9460)]