209228900

素因数分解:

$2^2\times 5^2\times {\mathrm{443}}^1\times {\mathrm{4723}}^1$

素因数の和:5180

約数の個数: 36

約数和(自身を含む): 455147952

約数和(自身を除く): 245919052

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 443, 886, 1772, 2215, 4430, 4723, 8860, 9446, 11075, 18892, 22150, 23615, 44300, 47230, 94460, 118075, 236150, 472300, 2092289, 4184578, 8369156, 10461445, 20922890, 41845780, 52307225, 104614450, 209228900]

約数ペア:

[(1, 209228900), (2, 104614450), (4, 52307225), (5, 41845780), (10, 20922890), (20, 10461445), (25, 8369156), (50, 4184578), (100, 2092289), (443, 472300), (886, 236150), (1772, 118075), (2215, 94460), (4430, 47230), (4723, 44300), (8860, 23615), (9446, 22150), (11075, 18892)]