204920260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{1993}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 443194416

約数和(自身を除く): 238274156

約数列:

[1, 2, 4, 5, 10, 20, 53, 97, 106, 194, 212, 265, 388, 485, 530, 970, 1060, 1940, 1993, 3986, 5141, 7972, 9965, 10282, 19930, 20564, 25705, 39860, 51410, 102820, 105629, 193321, 211258, 386642, 422516, 528145, 773284, 966605, 1056290, 1933210, 2112580, 3866420, 10246013, 20492026, 40984052, 51230065, 102460130, 204920260]

約数ペア:

[(1, 204920260), (2, 102460130), (4, 51230065), (5, 40984052), (10, 20492026), (20, 10246013), (53, 3866420), (97, 2112580), (106, 1933210), (194, 1056290), (212, 966605), (265, 773284), (388, 528145), (485, 422516), (530, 386642), (970, 211258), (1060, 193321), (1940, 105629), (1993, 102820), (3986, 51410), (5141, 39860), (7972, 25705), (9965, 20564), (10282, 19930)]