266951740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{28219}}^1$

素因数の和:28282

約数の個数: 48

約数和(自身を含む): 625806720

約数和(自身を除く): 358854980

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, 28219, 56438, 112876, 141095, 282190, 310409, 564380, 620818, 1213417, 1241636, 1552045, 2426834, 3104090, 4853668, 6067085, 6208180, 12134170, 13347587, 24268340, 26695174, 53390348, 66737935, 133475870, 266951740]

約数ペア:

[(1, 266951740), (2, 133475870), (4, 66737935), (5, 53390348), (10, 26695174), (11, 24268340), (20, 13347587), (22, 12134170), (43, 6208180), (44, 6067085), (55, 4853668), (86, 3104090), (110, 2426834), (172, 1552045), (215, 1241636), (220, 1213417), (430, 620818), (473, 564380), (860, 310409), (946, 282190), (1892, 141095), (2365, 112876), (4730, 56438), (9460, 28219)]