201280420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21277}}^1$

素因数の和:21340

約数の個数: 48

約数和(自身を含む): 471860928

約数和(自身を除く): 270580508

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, 9460, 21277, 42554, 85108, 106385, 212770, 234047, 425540, 468094, 914911, 936188, 1170235, 1829822, 2340470, 3659644, 4574555, 4680940, 9149110, 10064021, 18298220, 20128042, 40256084, 50320105, 100640210, 201280420]

約数ペア:

[(1, 201280420), (2, 100640210), (4, 50320105), (5, 40256084), (10, 20128042), (11, 18298220), (20, 10064021), (22, 9149110), (43, 4680940), (44, 4574555), (55, 3659644), (86, 2340470), (110, 1829822), (172, 1170235), (215, 936188), (220, 914911), (430, 468094), (473, 425540), (860, 234047), (946, 212770), (1892, 106385), (2365, 85108), (4730, 42554), (9460, 21277)]