66981688

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{440669}}^1$

素因数の和:440694

約数の個数: 16

約数和(自身を含む): 132201000

約数和(自身を除く): 65219312

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 440669, 881338, 1762676, 3525352, 8372711, 16745422, 33490844, 66981688]

約数ペア:

[(1, 66981688), (2, 33490844), (4, 16745422), (8, 8372711), (19, 3525352), (38, 1762676), (76, 881338), (152, 440669)]