220972000

素因数分解:

$2^5\times 5^3\times {\mathrm{55243}}^1$

素因数の和:55268

約数の個数: 48

約数和(自身を含む): 542938032

約数和(自身を除く): 321966032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 55243, 110486, 220972, 276215, 441944, 552430, 883888, 1104860, 1381075, 1767776, 2209720, 2762150, 4419440, 5524300, 6905375, 8838880, 11048600, 13810750, 22097200, 27621500, 44194400, 55243000, 110486000, 220972000]

約数ペア:

[(1, 220972000), (2, 110486000), (4, 55243000), (5, 44194400), (8, 27621500), (10, 22097200), (16, 13810750), (20, 11048600), (25, 8838880), (32, 6905375), (40, 5524300), (50, 4419440), (80, 2762150), (100, 2209720), (125, 1767776), (160, 1381075), (200, 1104860), (250, 883888), (400, 552430), (500, 441944), (800, 276215), (1000, 220972), (2000, 110486), (4000, 55243)]