20333920

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{761}}^1$

素因数の和:943

約数の個数: 48

約数和(自身を含む): 48390048

約数和(自身を除く): 28056128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 761, 835, 1336, 1522, 1670, 2672, 3044, 3340, 3805, 5344, 6088, 6680, 7610, 12176, 13360, 15220, 24352, 26720, 30440, 60880, 121760, 127087, 254174, 508348, 635435, 1016696, 1270870, 2033392, 2541740, 4066784, 5083480, 10166960, 20333920]

約数ペア:

[(1, 20333920), (2, 10166960), (4, 5083480), (5, 4066784), (8, 2541740), (10, 2033392), (16, 1270870), (20, 1016696), (32, 635435), (40, 508348), (80, 254174), (160, 127087), (167, 121760), (334, 60880), (668, 30440), (761, 26720), (835, 24352), (1336, 15220), (1522, 13360), (1670, 12176), (2672, 7610), (3044, 6680), (3340, 6088), (3805, 5344)]