20525900

素因数分解:

$2^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{2473}}^1$

素因数の和:2570

約数の個数: 36

約数和(自身を含む): 45096072

約数和(自身を除く): 24570172

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 166, 332, 415, 830, 1660, 2075, 2473, 4150, 4946, 8300, 9892, 12365, 24730, 49460, 61825, 123650, 205259, 247300, 410518, 821036, 1026295, 2052590, 4105180, 5131475, 10262950, 20525900]

約数ペア:

[(1, 20525900), (2, 10262950), (4, 5131475), (5, 4105180), (10, 2052590), (20, 1026295), (25, 821036), (50, 410518), (83, 247300), (100, 205259), (166, 123650), (332, 61825), (415, 49460), (830, 24730), (1660, 12365), (2075, 9892), (2473, 8300), (4150, 4946)]