55210000

素因数分解:

$2^4\times 5^4\times {\mathrm{5521}}^1$

素因数の和:5549

約数の個数: 50

約数和(自身を含む): 133693142

約数和(自身を除く): 78483142

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 5521, 10000, 11042, 22084, 27605, 44168, 55210, 88336, 110420, 138025, 220840, 276050, 441680, 552100, 690125, 1104200, 1380250, 2208400, 2760500, 3450625, 5521000, 6901250, 11042000, 13802500, 27605000, 55210000]

約数ペア:

[(1, 55210000), (2, 27605000), (4, 13802500), (5, 11042000), (8, 6901250), (10, 5521000), (16, 3450625), (20, 2760500), (25, 2208400), (40, 1380250), (50, 1104200), (80, 690125), (100, 552100), (125, 441680), (200, 276050), (250, 220840), (400, 138025), (500, 110420), (625, 88336), (1000, 55210), (1250, 44168), (2000, 27605), (2500, 22084), (5000, 11042), (5521, 10000)]