81489176

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{653}}^1\times {\mathrm{821}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 161276400

約数和(自身を除く): 79787224

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 653, 821, 1306, 1642, 2612, 3284, 5224, 6568, 12407, 15599, 24814, 31198, 49628, 62396, 99256, 124792, 536113, 1072226, 2144452, 4288904, 10186147, 20372294, 40744588, 81489176]

約数ペア:

[(1, 81489176), (2, 40744588), (4, 20372294), (8, 10186147), (19, 4288904), (38, 2144452), (76, 1072226), (152, 536113), (653, 124792), (821, 99256), (1306, 62396), (1642, 49628), (2612, 31198), (3284, 24814), (5224, 15599), (6568, 12407)]