256156670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{17509}}^1$

素因数の和:17553

約数の個数: 64

約数和(自身を含む): 605145600

約数和(自身を除く): 348988930

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 35, 38, 55, 70, 77, 95, 110, 133, 154, 190, 209, 266, 385, 418, 665, 770, 1045, 1330, 1463, 2090, 2926, 7315, 14630, 17509, 35018, 87545, 122563, 175090, 192599, 245126, 332671, 385198, 612815, 665342, 962995, 1225630, 1348193, 1663355, 1925990, 2328697, 2696386, 3326710, 3659381, 4657394, 6740965, 7318762, 11643485, 13481930, 18296905, 23286970, 25615667, 36593810, 51231334, 128078335, 256156670]

約数ペア:

[(1, 256156670), (2, 128078335), (5, 51231334), (7, 36593810), (10, 25615667), (11, 23286970), (14, 18296905), (19, 13481930), (22, 11643485), (35, 7318762), (38, 6740965), (55, 4657394), (70, 3659381), (77, 3326710), (95, 2696386), (110, 2328697), (133, 1925990), (154, 1663355), (190, 1348193), (209, 1225630), (266, 962995), (385, 665342), (418, 612815), (665, 385198), (770, 332671), (1045, 245126), (1330, 192599), (1463, 175090), (2090, 122563), (2926, 87545), (7315, 35018), (14630, 17509)]