217876725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1873}}^1$

素因数の和:1947

約数の個数: 72

約数和(自身を含む): 435007872

約数和(自身を除く): 217131147

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 47, 55, 75, 99, 141, 165, 225, 235, 275, 423, 495, 517, 705, 825, 1175, 1551, 1873, 2115, 2475, 2585, 3525, 4653, 5619, 7755, 9365, 10575, 12925, 16857, 20603, 23265, 28095, 38775, 46825, 61809, 84285, 88031, 103015, 116325, 140475, 185427, 264093, 309045, 421425, 440155, 515075, 792279, 927135, 968341, 1320465, 1545225, 2200775, 2905023, 3961395, 4635675, 4841705, 6602325, 8715069, 14525115, 19806975, 24208525, 43575345, 72625575, 217876725]

約数ペア:

[(1, 217876725), (3, 72625575), (5, 43575345), (9, 24208525), (11, 19806975), (15, 14525115), (25, 8715069), (33, 6602325), (45, 4841705), (47, 4635675), (55, 3961395), (75, 2905023), (99, 2200775), (141, 1545225), (165, 1320465), (225, 968341), (235, 927135), (275, 792279), (423, 515075), (495, 440155), (517, 421425), (705, 309045), (825, 264093), (1175, 185427), (1551, 140475), (1873, 116325), (2115, 103015), (2475, 88031), (2585, 84285), (3525, 61809), (4653, 46825), (5619, 38775), (7755, 28095), (9365, 23265), (10575, 20603), (12925, 16857)]