20560106

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:124

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 19356694

約数列:

[1, 2, 7, 14, 17, 34, 41, 43, 49, 82, 86, 98, 119, 238, 287, 301, 343, 574, 602, 686, 697, 731, 833, 1394, 1462, 1666, 1763, 2009, 2107, 3526, 4018, 4214, 4879, 5117, 5831, 9758, 10234, 11662, 12341, 14063, 14749, 24682, 28126, 29498, 29971, 34153, 35819, 59942, 68306, 71638, 86387, 172774, 209797, 239071, 250733, 419594, 478142, 501466, 604709, 1209418, 1468579, 2937158, 10280053, 20560106]

約数ペア:

[(1, 20560106), (2, 10280053), (7, 2937158), (14, 1468579), (17, 1209418), (34, 604709), (41, 501466), (43, 478142), (49, 419594), (82, 250733), (86, 239071), (98, 209797), (119, 172774), (238, 86387), (287, 71638), (301, 68306), (343, 59942), (574, 35819), (602, 34153), (686, 29971), (697, 29498), (731, 28126), (833, 24682), (1394, 14749), (1462, 14063), (1666, 12341), (1763, 11662), (2009, 10234), (2107, 9758), (3526, 5831), (4018, 5117), (4214, 4879)]