266291260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{739}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 574358400

約数和(自身を除く): 308067140

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 419, 430, 739, 838, 860, 1478, 1676, 2095, 2956, 3695, 4190, 7390, 8380, 14780, 18017, 31777, 36034, 63554, 72068, 90085, 127108, 158885, 180170, 309641, 317770, 360340, 619282, 635540, 1238564, 1548205, 3096410, 6192820, 13314563, 26629126, 53258252, 66572815, 133145630, 266291260]

約数ペア:

[(1, 266291260), (2, 133145630), (4, 66572815), (5, 53258252), (10, 26629126), (20, 13314563), (43, 6192820), (86, 3096410), (172, 1548205), (215, 1238564), (419, 635540), (430, 619282), (739, 360340), (838, 317770), (860, 309641), (1478, 180170), (1676, 158885), (2095, 127108), (2956, 90085), (3695, 72068), (4190, 63554), (7390, 36034), (8380, 31777), (14780, 18017)]