16990000

素因数分解:

$2^4\times 5^4\times {\mathrm{1699}}^1$

素因数の和:1727

約数の個数: 50

約数和(自身を含む): 41158700

約数和(自身を除く): 24168700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 1699, 2000, 2500, 3398, 5000, 6796, 8495, 10000, 13592, 16990, 27184, 33980, 42475, 67960, 84950, 135920, 169900, 212375, 339800, 424750, 679600, 849500, 1061875, 1699000, 2123750, 3398000, 4247500, 8495000, 16990000]

約数ペア:

[(1, 16990000), (2, 8495000), (4, 4247500), (5, 3398000), (8, 2123750), (10, 1699000), (16, 1061875), (20, 849500), (25, 679600), (40, 424750), (50, 339800), (80, 212375), (100, 169900), (125, 135920), (200, 84950), (250, 67960), (400, 42475), (500, 33980), (625, 27184), (1000, 16990), (1250, 13592), (1699, 10000), (2000, 8495), (2500, 6796), (3398, 5000)]