19733775

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 34700160

約数和(自身を除く): 14966385

約数列:

[1, 3, 5, 15, 25, 29, 43, 75, 87, 129, 145, 211, 215, 435, 633, 645, 725, 1055, 1075, 1247, 2175, 3165, 3225, 3741, 5275, 6119, 6235, 9073, 15825, 18357, 18705, 27219, 30595, 31175, 45365, 91785, 93525, 136095, 152975, 226825, 263117, 458925, 680475, 789351, 1315585, 3946755, 6577925, 19733775]

約数ペア:

[(1, 19733775), (3, 6577925), (5, 3946755), (15, 1315585), (25, 789351), (29, 680475), (43, 458925), (75, 263117), (87, 226825), (129, 152975), (145, 136095), (211, 93525), (215, 91785), (435, 45365), (633, 31175), (645, 30595), (725, 27219), (1055, 18705), (1075, 18357), (1247, 15825), (2175, 9073), (3165, 6235), (3225, 6119), (3741, 5275)]