1900872800

素因数分解:

$2^5\times 5^2\times {\mathrm{109}}^1\times {\mathrm{21799}}^1$

素因数の和:21928

約数の個数: 72

約数和(自身を含む): 4683294000

約数和(自身を除く): 2782421200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 109, 160, 200, 218, 400, 436, 545, 800, 872, 1090, 1744, 2180, 2725, 3488, 4360, 5450, 8720, 10900, 17440, 21799, 21800, 43598, 43600, 87196, 87200, 108995, 174392, 217990, 348784, 435980, 544975, 697568, 871960, 1089950, 1743920, 2179900, 2376091, 3487840, 4359800, 4752182, 8719600, 9504364, 11880455, 17439200, 19008728, 23760910, 38017456, 47521820, 59402275, 76034912, 95043640, 118804550, 190087280, 237609100, 380174560, 475218200, 950436400, 1900872800]

約数ペア:

[(1, 1900872800), (2, 950436400), (4, 475218200), (5, 380174560), (8, 237609100), (10, 190087280), (16, 118804550), (20, 95043640), (25, 76034912), (32, 59402275), (40, 47521820), (50, 38017456), (80, 23760910), (100, 19008728), (109, 17439200), (160, 11880455), (200, 9504364), (218, 8719600), (400, 4752182), (436, 4359800), (545, 3487840), (800, 2376091), (872, 2179900), (1090, 1743920), (1744, 1089950), (2180, 871960), (2725, 697568), (3488, 544975), (4360, 435980), (5450, 348784), (8720, 217990), (10900, 174392), (17440, 108995), (21799, 87200), (21800, 87196), (43598, 43600)]