20450500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{5843}}^1$

素因数の和:5869

約数の個数: 48

約数和(自身を含む): 51053184

約数和(自身を除く): 30602684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 5843, 11686, 23372, 29215, 40901, 58430, 81802, 116860, 146075, 163604, 204505, 292150, 409010, 584300, 730375, 818020, 1022525, 1460750, 2045050, 2921500, 4090100, 5112625, 10225250, 20450500]

約数ペア:

[(1, 20450500), (2, 10225250), (4, 5112625), (5, 4090100), (7, 2921500), (10, 2045050), (14, 1460750), (20, 1022525), (25, 818020), (28, 730375), (35, 584300), (50, 409010), (70, 292150), (100, 204505), (125, 163604), (140, 146075), (175, 116860), (250, 81802), (350, 58430), (500, 40901), (700, 29215), (875, 23372), (1750, 11686), (3500, 5843)]