18687550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:625

約数の個数: 48

約数和(自身を含む): 40176000

約数和(自身を除く): 21488450

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 107, 175, 214, 350, 499, 535, 749, 998, 1070, 1498, 2495, 2675, 3493, 3745, 4990, 5350, 6986, 7490, 12475, 17465, 18725, 24950, 34930, 37450, 53393, 87325, 106786, 174650, 266965, 373751, 533930, 747502, 1334825, 1868755, 2669650, 3737510, 9343775, 18687550]

約数ペア:

[(1, 18687550), (2, 9343775), (5, 3737510), (7, 2669650), (10, 1868755), (14, 1334825), (25, 747502), (35, 533930), (50, 373751), (70, 266965), (107, 174650), (175, 106786), (214, 87325), (350, 53393), (499, 37450), (535, 34930), (749, 24950), (998, 18725), (1070, 17465), (1498, 12475), (2495, 7490), (2675, 6986), (3493, 5350), (3745, 4990)]