81509300

素因数分解:

$2^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{3863}}^1$

素因数の和:4088

約数の個数: 36

約数和(自身を含む): 177759456

約数和(自身を除く): 96250156

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211, 422, 844, 1055, 2110, 3863, 4220, 5275, 7726, 10550, 15452, 19315, 21100, 38630, 77260, 96575, 193150, 386300, 815093, 1630186, 3260372, 4075465, 8150930, 16301860, 20377325, 40754650, 81509300]

約数ペア:

[(1, 81509300), (2, 40754650), (4, 20377325), (5, 16301860), (10, 8150930), (20, 4075465), (25, 3260372), (50, 1630186), (100, 815093), (211, 386300), (422, 193150), (844, 96575), (1055, 77260), (2110, 38630), (3863, 21100), (4220, 19315), (5275, 15452), (7726, 10550)]