28090216

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1526

約数の個数: 64

約数和(自身を含む): 67829760

約数和(自身を除く): 39739544

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 88, 124, 154, 217, 248, 308, 341, 434, 616, 682, 868, 1364, 1471, 1736, 2387, 2728, 2942, 4774, 5884, 9548, 10297, 11768, 16181, 19096, 20594, 32362, 41188, 45601, 64724, 82376, 91202, 113267, 129448, 182404, 226534, 319207, 364808, 453068, 501611, 638414, 906136, 1003222, 1276828, 2006444, 2553656, 3511277, 4012888, 7022554, 14045108, 28090216]

約数ペア:

[(1, 28090216), (2, 14045108), (4, 7022554), (7, 4012888), (8, 3511277), (11, 2553656), (14, 2006444), (22, 1276828), (28, 1003222), (31, 906136), (44, 638414), (56, 501611), (62, 453068), (77, 364808), (88, 319207), (124, 226534), (154, 182404), (217, 129448), (248, 113267), (308, 91202), (341, 82376), (434, 64724), (616, 45601), (682, 41188), (868, 32362), (1364, 20594), (1471, 19096), (1736, 16181), (2387, 11768), (2728, 10297), (2942, 9548), (4774, 5884)]