81287800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3359}}^1$

素因数の和:3397

約数の個数: 72

約数和(自身を含む): 207799200

約数和(自身を除く): 126511400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 200, 220, 242, 275, 440, 484, 550, 605, 968, 1100, 1210, 2200, 2420, 3025, 3359, 4840, 6050, 6718, 12100, 13436, 16795, 24200, 26872, 33590, 36949, 67180, 73898, 83975, 134360, 147796, 167950, 184745, 295592, 335900, 369490, 406439, 671800, 738980, 812878, 923725, 1477960, 1625756, 1847450, 2032195, 3251512, 3694900, 4064390, 7389800, 8128780, 10160975, 16257560, 20321950, 40643900, 81287800]

約数ペア:

[(1, 81287800), (2, 40643900), (4, 20321950), (5, 16257560), (8, 10160975), (10, 8128780), (11, 7389800), (20, 4064390), (22, 3694900), (25, 3251512), (40, 2032195), (44, 1847450), (50, 1625756), (55, 1477960), (88, 923725), (100, 812878), (110, 738980), (121, 671800), (200, 406439), (220, 369490), (242, 335900), (275, 295592), (440, 184745), (484, 167950), (550, 147796), (605, 134360), (968, 83975), (1100, 73898), (1210, 67180), (2200, 36949), (2420, 33590), (3025, 26872), (3359, 24200), (4840, 16795), (6050, 13436), (6718, 12100)]