19416650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:887

約数の個数: 48

約数和(自身を含む): 40363488

約数和(自身を除く): 20946838

約数列:

[1, 2, 5, 10, 11, 22, 25, 43, 50, 55, 86, 110, 215, 275, 430, 473, 550, 821, 946, 1075, 1642, 2150, 2365, 4105, 4730, 8210, 9031, 11825, 18062, 20525, 23650, 35303, 41050, 45155, 70606, 90310, 176515, 225775, 353030, 388333, 451550, 776666, 882575, 1765150, 1941665, 3883330, 9708325, 19416650]

約数ペア:

[(1, 19416650), (2, 9708325), (5, 3883330), (10, 1941665), (11, 1765150), (22, 882575), (25, 776666), (43, 451550), (50, 388333), (55, 353030), (86, 225775), (110, 176515), (215, 90310), (275, 70606), (430, 45155), (473, 41050), (550, 35303), (821, 23650), (946, 20525), (1075, 18062), (1642, 11825), (2150, 9031), (2365, 8210), (4105, 4730)]