261699788

素因数分解:

$2^2\times 7^2\times {\mathrm{641}}^1\times {\mathrm{2083}}^1$

素因数の和:2742

約数の個数: 36

約数和(自身を含む): 533833272

約数和(自身を除く): 272133484

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 641, 1282, 2083, 2564, 4166, 4487, 8332, 8974, 14581, 17948, 29162, 31409, 58324, 62818, 102067, 125636, 204134, 408268, 1335203, 2670406, 5340812, 9346421, 18692842, 37385684, 65424947, 130849894, 261699788]

約数ペア:

[(1, 261699788), (2, 130849894), (4, 65424947), (7, 37385684), (14, 18692842), (28, 9346421), (49, 5340812), (98, 2670406), (196, 1335203), (641, 408268), (1282, 204134), (2083, 125636), (2564, 102067), (4166, 62818), (4487, 58324), (8332, 31409), (8974, 29162), (14581, 17948)]