642542

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:515

約数の個数: 16

約数和(自身を含む): 1044240

約数和(自身を除く): 401698

約数列:

[1, 2, 19, 37, 38, 74, 457, 703, 914, 1406, 8683, 16909, 17366, 33818, 321271, 642542]

約数ペア:

[(1, 642542), (2, 321271), (19, 33818), (37, 17366), (38, 16909), (74, 8683), (457, 1406), (703, 914)]