19947340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7499}}^1$

素因数の和:7534

約数の個数: 48

約数和(自身を含む): 50400000

約数和(自身を除く): 30452660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7499, 14998, 29996, 37495, 52493, 74990, 104986, 142481, 149980, 209972, 262465, 284962, 524930, 569924, 712405, 997367, 1049860, 1424810, 1994734, 2849620, 3989468, 4986835, 9973670, 19947340]

約数ペア:

[(1, 19947340), (2, 9973670), (4, 4986835), (5, 3989468), (7, 2849620), (10, 1994734), (14, 1424810), (19, 1049860), (20, 997367), (28, 712405), (35, 569924), (38, 524930), (70, 284962), (76, 262465), (95, 209972), (133, 149980), (140, 142481), (190, 104986), (266, 74990), (380, 52493), (532, 37495), (665, 29996), (1330, 14998), (2660, 7499)]