20114825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 28926720

約数和(自身を除く): 8811895

約数列:

[1, 5, 17, 19, 25, 47, 53, 85, 95, 235, 265, 323, 425, 475, 799, 893, 901, 1007, 1175, 1325, 1615, 2491, 3995, 4465, 4505, 5035, 8075, 12455, 15181, 17119, 19975, 22325, 22525, 25175, 42347, 47329, 62275, 75905, 85595, 211735, 236645, 379525, 427975, 804593, 1058675, 1183225, 4022965, 20114825]

約数ペア:

[(1, 20114825), (5, 4022965), (17, 1183225), (19, 1058675), (25, 804593), (47, 427975), (53, 379525), (85, 236645), (95, 211735), (235, 85595), (265, 75905), (323, 62275), (425, 47329), (475, 42347), (799, 25175), (893, 22525), (901, 22325), (1007, 19975), (1175, 17119), (1325, 15181), (1615, 12455), (2491, 8075), (3995, 5035), (4465, 4505)]