10390000

素因数分解:

$2^4\times 5^4\times {\mathrm{1039}}^1$

素因数の和:1067

約数の個数: 50

約数和(自身を含む): 25179440

約数和(自身を除く): 14789440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1039, 1250, 2000, 2078, 2500, 4156, 5000, 5195, 8312, 10000, 10390, 16624, 20780, 25975, 41560, 51950, 83120, 103900, 129875, 207800, 259750, 415600, 519500, 649375, 1039000, 1298750, 2078000, 2597500, 5195000, 10390000]

約数ペア:

[(1, 10390000), (2, 5195000), (4, 2597500), (5, 2078000), (8, 1298750), (10, 1039000), (16, 649375), (20, 519500), (25, 415600), (40, 259750), (50, 207800), (80, 129875), (100, 103900), (125, 83120), (200, 51950), (250, 41560), (400, 25975), (500, 20780), (625, 16624), (1000, 10390), (1039, 10000), (1250, 8312), (2000, 5195), (2078, 5000), (2500, 4156)]