390091775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 533537280

約数和(自身を除く): 143445505

約数列:

[1, 5, 17, 25, 47, 59, 85, 235, 295, 331, 425, 799, 1003, 1175, 1475, 1655, 2773, 3995, 5015, 5627, 8275, 13865, 15557, 19529, 19975, 25075, 28135, 47141, 69325, 77785, 97645, 140675, 235705, 264469, 331993, 388925, 488225, 917863, 1178525, 1322345, 1659965, 4589315, 6611725, 8299825, 15603671, 22946575, 78018355, 390091775]

約数ペア:

[(1, 390091775), (5, 78018355), (17, 22946575), (25, 15603671), (47, 8299825), (59, 6611725), (85, 4589315), (235, 1659965), (295, 1322345), (331, 1178525), (425, 917863), (799, 488225), (1003, 388925), (1175, 331993), (1475, 264469), (1655, 235705), (2773, 140675), (3995, 97645), (5015, 77785), (5627, 69325), (8275, 47141), (13865, 28135), (15557, 25075), (19529, 19975)]