81800620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8647}}^1$

素因数の和:8710

約数の個数: 48

約数和(自身を含む): 191778048

約数和(自身を除く): 109977428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 8647, 9460, 17294, 34588, 43235, 86470, 95117, 172940, 190234, 371821, 380468, 475585, 743642, 951170, 1487284, 1859105, 1902340, 3718210, 4090031, 7436420, 8180062, 16360124, 20450155, 40900310, 81800620]

約数ペア:

[(1, 81800620), (2, 40900310), (4, 20450155), (5, 16360124), (10, 8180062), (11, 7436420), (20, 4090031), (22, 3718210), (43, 1902340), (44, 1859105), (55, 1487284), (86, 951170), (110, 743642), (172, 475585), (215, 380468), (220, 371821), (430, 190234), (473, 172940), (860, 95117), (946, 86470), (1892, 43235), (2365, 34588), (4730, 17294), (8647, 9460)]