20178490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4093}}^1$

素因数の和:4146

約数の個数: 32

約数和(自身を含む): 39793680

約数和(自身を除く): 19615190

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4093, 4930, 8186, 20465, 40930, 69581, 118697, 139162, 237394, 347905, 593485, 695810, 1186970, 2017849, 4035698, 10089245, 20178490]

約数ペア:

[(1, 20178490), (2, 10089245), (5, 4035698), (10, 2017849), (17, 1186970), (29, 695810), (34, 593485), (58, 347905), (85, 237394), (145, 139162), (170, 118697), (290, 69581), (493, 40930), (986, 20465), (2465, 8186), (4093, 4930)]