22228400

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{911}}^1$

素因数の和:990

約数の個数: 60

約数和(自身を含む): 54338784

約数和(自身を除く): 32110384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 911, 976, 1220, 1525, 1822, 2440, 3050, 3644, 4555, 4880, 6100, 7288, 9110, 12200, 14576, 18220, 22775, 24400, 36440, 45550, 55571, 72880, 91100, 111142, 182200, 222284, 277855, 364400, 444568, 555710, 889136, 1111420, 1389275, 2222840, 2778550, 4445680, 5557100, 11114200, 22228400]

約数ペア:

[(1, 22228400), (2, 11114200), (4, 5557100), (5, 4445680), (8, 2778550), (10, 2222840), (16, 1389275), (20, 1111420), (25, 889136), (40, 555710), (50, 444568), (61, 364400), (80, 277855), (100, 222284), (122, 182200), (200, 111142), (244, 91100), (305, 72880), (400, 55571), (488, 45550), (610, 36440), (911, 24400), (976, 22775), (1220, 18220), (1525, 14576), (1822, 12200), (2440, 9110), (3050, 7288), (3644, 6100), (4555, 4880)]