39789890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2549}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 82252800

約数和(自身を除く): 42462910

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 223, 446, 1115, 1561, 2230, 2549, 3122, 5098, 7805, 12745, 15610, 17843, 25490, 35686, 89215, 178430, 568427, 1136854, 2842135, 3978989, 5684270, 7957978, 19894945, 39789890]

約数ペア:

[(1, 39789890), (2, 19894945), (5, 7957978), (7, 5684270), (10, 3978989), (14, 2842135), (35, 1136854), (70, 568427), (223, 178430), (446, 89215), (1115, 35686), (1561, 25490), (2230, 17843), (2549, 15610), (3122, 12745), (5098, 7805)]