81561358

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{7951}}^1$

素因数の和:8199

約数の個数: 16

約数和(自身を含む): 128249856

約数和(自身を除く): 46688498

約数列:

[1, 2, 23, 46, 223, 446, 5129, 7951, 10258, 15902, 182873, 365746, 1773073, 3546146, 40780679, 81561358]

約数ペア:

[(1, 81561358), (2, 40780679), (23, 3546146), (46, 1773073), (223, 365746), (446, 182873), (5129, 15902), (7951, 10258)]