205317900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{228131}}^1$

素因数の和:228151

約数の個数: 54

約数和(自身を含む): 643560372

約数和(自身を除く): 438242472

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 228131, 456262, 684393, 912524, 1140655, 1368786, 2053179, 2281310, 2737572, 3421965, 4106358, 4562620, 5703275, 6843930, 8212716, 10265895, 11406550, 13687860, 17109825, 20531790, 22813100, 34219650, 41063580, 51329475, 68439300, 102658950, 205317900]

約数ペア:

[(1, 205317900), (2, 102658950), (3, 68439300), (4, 51329475), (5, 41063580), (6, 34219650), (9, 22813100), (10, 20531790), (12, 17109825), (15, 13687860), (18, 11406550), (20, 10265895), (25, 8212716), (30, 6843930), (36, 5703275), (45, 4562620), (50, 4106358), (60, 3421965), (75, 2737572), (90, 2281310), (100, 2053179), (150, 1368786), (180, 1140655), (225, 912524), (300, 684393), (450, 456262), (900, 228131)]