2747800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1249}}^1$

素因数の和:1276

約数の個数: 48

約数和(自身を含む): 6975000

約数和(自身を除く): 4227200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 1249, 2200, 2498, 4996, 6245, 9992, 12490, 13739, 24980, 27478, 31225, 49960, 54956, 62450, 68695, 109912, 124900, 137390, 249800, 274780, 343475, 549560, 686950, 1373900, 2747800]

約数ペア:

[(1, 2747800), (2, 1373900), (4, 686950), (5, 549560), (8, 343475), (10, 274780), (11, 249800), (20, 137390), (22, 124900), (25, 109912), (40, 68695), (44, 62450), (50, 54956), (55, 49960), (88, 31225), (100, 27478), (110, 24980), (200, 13739), (220, 12490), (275, 9992), (440, 6245), (550, 4996), (1100, 2498), (1249, 2200)]