19508000

素因数分解:

$2^5\times 5^3\times {\mathrm{4877}}^1$

素因数の和:4902

約数の個数: 48

約数和(自身を含む): 47940984

約数和(自身を除く): 28432984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 4877, 9754, 19508, 24385, 39016, 48770, 78032, 97540, 121925, 156064, 195080, 243850, 390160, 487700, 609625, 780320, 975400, 1219250, 1950800, 2438500, 3901600, 4877000, 9754000, 19508000]

約数ペア:

[(1, 19508000), (2, 9754000), (4, 4877000), (5, 3901600), (8, 2438500), (10, 1950800), (16, 1219250), (20, 975400), (25, 780320), (32, 609625), (40, 487700), (50, 390160), (80, 243850), (100, 195080), (125, 156064), (160, 121925), (200, 97540), (250, 78032), (400, 48770), (500, 39016), (800, 24385), (1000, 19508), (2000, 9754), (4000, 4877)]