15120515

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 18579456

約数和(自身を除く): 3458941

約数列:

[1, 5, 71, 191, 223, 355, 955, 1115, 13561, 15833, 42593, 67805, 79165, 212965, 3024103, 15120515]

約数ペア:

[(1, 15120515), (5, 3024103), (71, 212965), (191, 79165), (223, 67805), (355, 42593), (955, 15833), (1115, 13561)]