220788920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{1489}}^1$

素因数の和:1848

約数の個数: 64

約数和(自身を含む): 543909600

約数和(自身を除く): 323120680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 337, 440, 674, 1348, 1489, 1685, 2696, 2978, 3370, 3707, 5956, 6740, 7414, 7445, 11912, 13480, 14828, 14890, 16379, 18535, 29656, 29780, 32758, 37070, 59560, 65516, 74140, 81895, 131032, 148280, 163790, 327580, 501793, 655160, 1003586, 2007172, 2508965, 4014344, 5017930, 5519723, 10035860, 11039446, 20071720, 22078892, 27598615, 44157784, 55197230, 110394460, 220788920]

約数ペア:

[(1, 220788920), (2, 110394460), (4, 55197230), (5, 44157784), (8, 27598615), (10, 22078892), (11, 20071720), (20, 11039446), (22, 10035860), (40, 5519723), (44, 5017930), (55, 4014344), (88, 2508965), (110, 2007172), (220, 1003586), (337, 655160), (440, 501793), (674, 327580), (1348, 163790), (1489, 148280), (1685, 131032), (2696, 81895), (2978, 74140), (3370, 65516), (3707, 59560), (5956, 37070), (6740, 32758), (7414, 29780), (7445, 29656), (11912, 18535), (13480, 16379), (14828, 14890)]