20650648

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{479}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 41212800

約数和(自身を除く): 20562152

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 317, 479, 634, 958, 1268, 1916, 2536, 3832, 5389, 8143, 10778, 16286, 21556, 32572, 43112, 65144, 151843, 303686, 607372, 1214744, 2581331, 5162662, 10325324, 20650648]

約数ペア:

[(1, 20650648), (2, 10325324), (4, 5162662), (8, 2581331), (17, 1214744), (34, 607372), (68, 303686), (136, 151843), (317, 65144), (479, 43112), (634, 32572), (958, 21556), (1268, 16286), (1916, 10778), (2536, 8143), (3832, 5389)]