20657544

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 54373440

約数和(自身を除く): 33715896

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 43, 74, 86, 111, 129, 148, 172, 222, 258, 296, 344, 444, 516, 541, 888, 1032, 1082, 1591, 1623, 2164, 3182, 3246, 4328, 4773, 6364, 6492, 9546, 12728, 12984, 19092, 20017, 23263, 38184, 40034, 46526, 60051, 69789, 80068, 93052, 120102, 139578, 160136, 186104, 240204, 279156, 480408, 558312, 860731, 1721462, 2582193, 3442924, 5164386, 6885848, 10328772, 20657544]

約数ペア:

[(1, 20657544), (2, 10328772), (3, 6885848), (4, 5164386), (6, 3442924), (8, 2582193), (12, 1721462), (24, 860731), (37, 558312), (43, 480408), (74, 279156), (86, 240204), (111, 186104), (129, 160136), (148, 139578), (172, 120102), (222, 93052), (258, 80068), (296, 69789), (344, 60051), (444, 46526), (516, 40034), (541, 38184), (888, 23263), (1032, 20017), (1082, 19092), (1591, 12984), (1623, 12728), (2164, 9546), (3182, 6492), (3246, 6364), (4328, 4773)]