2139500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{389}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 5110560

約数和(自身を除く): 2971060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 389, 500, 550, 778, 1100, 1375, 1556, 1945, 2750, 3890, 4279, 5500, 7780, 8558, 9725, 17116, 19450, 21395, 38900, 42790, 48625, 85580, 97250, 106975, 194500, 213950, 427900, 534875, 1069750, 2139500]

約数ペア:

[(1, 2139500), (2, 1069750), (4, 534875), (5, 427900), (10, 213950), (11, 194500), (20, 106975), (22, 97250), (25, 85580), (44, 48625), (50, 42790), (55, 38900), (100, 21395), (110, 19450), (125, 17116), (220, 9725), (250, 8558), (275, 7780), (389, 5500), (500, 4279), (550, 3890), (778, 2750), (1100, 1945), (1375, 1556)]