22920820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{443}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 52214400

約数和(自身を除く): 29293580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 443, 796, 886, 995, 1772, 1990, 2215, 2587, 3980, 4430, 5174, 5759, 8860, 10348, 11518, 12935, 23036, 25870, 28795, 51740, 57590, 88157, 115180, 176314, 352628, 440785, 881570, 1146041, 1763140, 2292082, 4584164, 5730205, 11460410, 22920820]

約数ペア:

[(1, 22920820), (2, 11460410), (4, 5730205), (5, 4584164), (10, 2292082), (13, 1763140), (20, 1146041), (26, 881570), (52, 440785), (65, 352628), (130, 176314), (199, 115180), (260, 88157), (398, 57590), (443, 51740), (796, 28795), (886, 25870), (995, 23036), (1772, 12935), (1990, 11518), (2215, 10348), (2587, 8860), (3980, 5759), (4430, 5174)]