290420452

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2027}}^1$

素因数の和:2105

約数の個数: 72

約数和(自身を含む): 640864224

約数和(自身を除く): 350443772

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 43, 49, 68, 86, 98, 119, 172, 196, 238, 301, 476, 602, 731, 833, 1204, 1462, 1666, 2027, 2107, 2924, 3332, 4054, 4214, 5117, 8108, 8428, 10234, 14189, 20468, 28378, 34459, 35819, 56756, 68918, 71638, 87161, 99323, 137836, 143276, 174322, 198646, 241213, 348644, 397292, 482426, 610127, 964852, 1220254, 1481737, 1688491, 2440508, 2963474, 3376982, 4270889, 5926948, 6753964, 8541778, 10372159, 17083556, 20744318, 41488636, 72605113, 145210226, 290420452]

約数ペア:

[(1, 290420452), (2, 145210226), (4, 72605113), (7, 41488636), (14, 20744318), (17, 17083556), (28, 10372159), (34, 8541778), (43, 6753964), (49, 5926948), (68, 4270889), (86, 3376982), (98, 2963474), (119, 2440508), (172, 1688491), (196, 1481737), (238, 1220254), (301, 964852), (476, 610127), (602, 482426), (731, 397292), (833, 348644), (1204, 241213), (1462, 198646), (1666, 174322), (2027, 143276), (2107, 137836), (2924, 99323), (3332, 87161), (4054, 71638), (4214, 68918), (5117, 56756), (8108, 35819), (8428, 34459), (10234, 28378), (14189, 20468)]