666205690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{7949}}^1$

素因数の和:8019

約数の個数: 48

約数和(自身を含む): 1317951000

約数和(自身を除く): 651745310

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 289, 290, 493, 578, 986, 1445, 2465, 2890, 4930, 7949, 8381, 15898, 16762, 39745, 41905, 79490, 83810, 135133, 230521, 270266, 461042, 675665, 1152605, 1351330, 2297261, 2305210, 3918857, 4594522, 7837714, 11486305, 19594285, 22972610, 39188570, 66620569, 133241138, 333102845, 666205690]

約数ペア:

[(1, 666205690), (2, 333102845), (5, 133241138), (10, 66620569), (17, 39188570), (29, 22972610), (34, 19594285), (58, 11486305), (85, 7837714), (145, 4594522), (170, 3918857), (289, 2305210), (290, 2297261), (493, 1351330), (578, 1152605), (986, 675665), (1445, 461042), (2465, 270266), (2890, 230521), (4930, 135133), (7949, 83810), (8381, 79490), (15898, 41905), (16762, 39745)]