38890000

素因数分解:

$2^4\times 5^4\times {\mathrm{3889}}^1$

素因数の和:3917

約数の個数: 50

約数和(自身を含む): 94180790

約数和(自身を除く): 55290790

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3889, 5000, 7778, 10000, 15556, 19445, 31112, 38890, 62224, 77780, 97225, 155560, 194450, 311120, 388900, 486125, 777800, 972250, 1555600, 1944500, 2430625, 3889000, 4861250, 7778000, 9722500, 19445000, 38890000]

約数ペア:

[(1, 38890000), (2, 19445000), (4, 9722500), (5, 7778000), (8, 4861250), (10, 3889000), (16, 2430625), (20, 1944500), (25, 1555600), (40, 972250), (50, 777800), (80, 486125), (100, 388900), (125, 311120), (200, 194450), (250, 155560), (400, 97225), (500, 77780), (625, 62224), (1000, 38890), (1250, 31112), (2000, 19445), (2500, 15556), (3889, 10000), (5000, 7778)]