19496890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1249}}^1$

素因数の和:1486

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 20823110

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 223, 446, 1115, 1249, 1561, 2230, 2498, 3122, 6245, 7805, 8743, 12490, 15610, 17486, 43715, 87430, 278527, 557054, 1392635, 1949689, 2785270, 3899378, 9748445, 19496890]

約数ペア:

[(1, 19496890), (2, 9748445), (5, 3899378), (7, 2785270), (10, 1949689), (14, 1392635), (35, 557054), (70, 278527), (223, 87430), (446, 43715), (1115, 17486), (1249, 15610), (1561, 12490), (2230, 8743), (2498, 7805), (3122, 6245)]