139968405

素因数分解:

$3^4\times 5^1\times {\mathrm{345601}}^1$

素因数の和:345618

約数の個数: 20

約数和(自身を含む): 250907052

約数和(自身を除く): 110938647

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 345601, 1036803, 1728005, 3110409, 5184015, 9331227, 15552045, 27993681, 46656135, 139968405]

約数ペア:

[(1, 139968405), (3, 46656135), (5, 27993681), (9, 15552045), (15, 9331227), (27, 5184015), (45, 3110409), (81, 1728005), (135, 1036803), (405, 345601)]