18789200

素因数分解:

$2^4\times 5^2\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:564

約数の個数: 60

約数和(自身を含む): 45666720

約数和(自身を除く): 26877520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 107, 200, 214, 400, 428, 439, 535, 856, 878, 1070, 1712, 1756, 2140, 2195, 2675, 3512, 4280, 4390, 5350, 7024, 8560, 8780, 10700, 10975, 17560, 21400, 21950, 35120, 42800, 43900, 46973, 87800, 93946, 175600, 187892, 234865, 375784, 469730, 751568, 939460, 1174325, 1878920, 2348650, 3757840, 4697300, 9394600, 18789200]

約数ペア:

[(1, 18789200), (2, 9394600), (4, 4697300), (5, 3757840), (8, 2348650), (10, 1878920), (16, 1174325), (20, 939460), (25, 751568), (40, 469730), (50, 375784), (80, 234865), (100, 187892), (107, 175600), (200, 93946), (214, 87800), (400, 46973), (428, 43900), (439, 42800), (535, 35120), (856, 21950), (878, 21400), (1070, 17560), (1712, 10975), (1756, 10700), (2140, 8780), (2195, 8560), (2675, 7024), (3512, 5350), (4280, 4390)]