28286776

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 65767680

約数和(自身を除く): 37480904

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 43, 56, 68, 86, 119, 136, 172, 238, 301, 344, 476, 602, 691, 731, 952, 1204, 1382, 1462, 2408, 2764, 2924, 4837, 5117, 5528, 5848, 9674, 10234, 11747, 19348, 20468, 23494, 29713, 38696, 40936, 46988, 59426, 82229, 93976, 118852, 164458, 207991, 237704, 328916, 415982, 505121, 657832, 831964, 1010242, 1663928, 2020484, 3535847, 4040968, 7071694, 14143388, 28286776]

約数ペア:

[(1, 28286776), (2, 14143388), (4, 7071694), (7, 4040968), (8, 3535847), (14, 2020484), (17, 1663928), (28, 1010242), (34, 831964), (43, 657832), (56, 505121), (68, 415982), (86, 328916), (119, 237704), (136, 207991), (172, 164458), (238, 118852), (301, 93976), (344, 82229), (476, 59426), (602, 46988), (691, 40936), (731, 38696), (952, 29713), (1204, 23494), (1382, 20468), (1462, 19348), (2408, 11747), (2764, 10234), (2924, 9674), (4837, 5848), (5117, 5528)]