81686776

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{537413}}^1$

素因数の和:537438

約数の個数: 16

約数和(自身を含む): 161224200

約数和(自身を除く): 79537424

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 537413, 1074826, 2149652, 4299304, 10210847, 20421694, 40843388, 81686776]

約数ペア:

[(1, 81686776), (2, 40843388), (4, 20421694), (8, 10210847), (19, 4299304), (38, 2149652), (76, 1074826), (152, 537413)]